Bitcoin interview questions
Publish: 2021-04-25 13:50:55
1. There are several problems in the development process of bitcoin:
1. Supervision. Decentralization is the biggest advantage and the biggest disadvantage of bitcoin; Because it is easy to be used for illegal trade
2. The problem of trading platform. At present, the domestic bitcoin trading is closed, but the foreign bitcoin trading market is hot and there are many platforms, so it is difficult for users to distinguish the legitimacy of the trading platform
3. As for the transaction risk, the bitcoin development team is only responsible for the development, maintenance and improvement of the bitcoin system, but it is unable to guarantee the normal progress of the transaction
4. As for the identity of the trader, generally speaking, the trading platform authenticates the user's real name, but the coin pack thinks that there are still some loopholes in this kind of authentication
5. Legitimacy. Because different countries have different views on bitcoin, they have different views on bitcoin.
1. Supervision. Decentralization is the biggest advantage and the biggest disadvantage of bitcoin; Because it is easy to be used for illegal trade
2. The problem of trading platform. At present, the domestic bitcoin trading is closed, but the foreign bitcoin trading market is hot and there are many platforms, so it is difficult for users to distinguish the legitimacy of the trading platform
3. As for the transaction risk, the bitcoin development team is only responsible for the development, maintenance and improvement of the bitcoin system, but it is unable to guarantee the normal progress of the transaction
4. As for the identity of the trader, generally speaking, the trading platform authenticates the user's real name, but the coin pack thinks that there are still some loopholes in this kind of authentication
5. Legitimacy. Because different countries have different views on bitcoin, they have different views on bitcoin.
2. Prouhub
do you mean pornhub?
do you mean pornhub?
3. I don't know how many crystals flow, but 10000 crystals = 1 yuan RMB
however, mining is very slow. It's only half a month since I got the crystal qualification. I only have 20000 crystals. The proction capacity is very low. The fastest speed is 3000K and the cache is 40g. In the last three days, it's about three or four thousand a day. The speed is fast in the evening, and almost no speed in the daytime
my home's 20m optical fiber is very close to the base station. The download speed is 3.7m/s, and the upload speed is about 2.4m/s.
however, mining is very slow. It's only half a month since I got the crystal qualification. I only have 20000 crystals. The proction capacity is very low. The fastest speed is 3000K and the cache is 40g. In the last three days, it's about three or four thousand a day. The speed is fast in the evening, and almost no speed in the daytime
my home's 20m optical fiber is very close to the base station. The download speed is 3.7m/s, and the upload speed is about 2.4m/s.
4. 1. MacOS version requirements: click from the top menu of the screen- About local system report... Open the system report app, find the "software" column in the left column and select it. View the system version column on the right:
system version: MacOS
10.12.1
(16b2657)
if your system version is less than 10.12.1, Please check the update and install it through app
store (or download the combined update installation image from Apple support website for manual installation). If you have installed 10.12.1 but the version number is less than 16b26xx, it means that the 10.12.1 you installed is not the latest version. You need to download the combined update installation image from Apple support website for manual installation
MacOS
10.12.1
update content: https://support.apple.com/zh-cn/ht206174
MacOS
10.12.1
combined update download: https://support.apple.com/kb/dl1897? viewlocale=zh_ cn&locale=zh_ Cn
2. To enable the native touch
bar function, you need to use your apple
ID to download Xcode from the app
store (about 15g of disk free space, if you are the developer of MacOS or IOS, Congratulations, you can continue). After installation, open Xcode and select
window show
touch
bar from the menu of Xcode at the top of the screen, You will find that the touch
bar is already displayed on the screen. At this time, you just need to keep Xcode on (which can be minimized). You can experience and use touch
bar as much as you want. Just like the entity touch
bar, you can open the system preferences app, customize your touch
bar display mode in the "keyboard" item, and also customize the buttons on the control bar. You can even choose display custom multi touch
bar from the menu of apps that support custom touch
bar to customize the application control bar. Yes, you now have the full function of touch
bar. The only difference is that touch
bar is directly displayed on the screen. Of course, you have to use the touch pad or mouse instead of touch and click. Finally, you need to find a suitable location for the touch
bar window on the screen
3. Another scenario: if I am an ordinary user and do not want to download Xcode, or the available disk space is not so large, can I not experience touch
bar
of course not. If you can't turn on this function directly, there will always be a big God who can transplant the function to make it run independently. Download a file called
touch é
app
note: the system should refer to point 1, otherwise it will not work. On the other hand, although the two look similar, Xcode turns on calling the native functions of the system,
touch é
it is the version transplanted by Dashen, and its reliability may be slightly poor. You can check the update from time to time to see if there is any repair or improvement (you can also turn on the automatic update function)
finally, of course, there is still a gap between the experience and the entity touch
bar, such as the lack of the function of word selection and association when inputting Chinese. Emoj can only choose the most commonly used one. If you want to have a perfect experience, you are recommended to use a touch
bar device.
system version: MacOS
10.12.1
(16b2657)
if your system version is less than 10.12.1, Please check the update and install it through app
store (or download the combined update installation image from Apple support website for manual installation). If you have installed 10.12.1 but the version number is less than 16b26xx, it means that the 10.12.1 you installed is not the latest version. You need to download the combined update installation image from Apple support website for manual installation
MacOS
10.12.1
update content: https://support.apple.com/zh-cn/ht206174
MacOS
10.12.1
combined update download: https://support.apple.com/kb/dl1897? viewlocale=zh_ cn&locale=zh_ Cn
2. To enable the native touch
bar function, you need to use your apple
ID to download Xcode from the app
store (about 15g of disk free space, if you are the developer of MacOS or IOS, Congratulations, you can continue). After installation, open Xcode and select
window show
touch
bar from the menu of Xcode at the top of the screen, You will find that the touch
bar is already displayed on the screen. At this time, you just need to keep Xcode on (which can be minimized). You can experience and use touch
bar as much as you want. Just like the entity touch
bar, you can open the system preferences app, customize your touch
bar display mode in the "keyboard" item, and also customize the buttons on the control bar. You can even choose display custom multi touch
bar from the menu of apps that support custom touch
bar to customize the application control bar. Yes, you now have the full function of touch
bar. The only difference is that touch
bar is directly displayed on the screen. Of course, you have to use the touch pad or mouse instead of touch and click. Finally, you need to find a suitable location for the touch
bar window on the screen
3. Another scenario: if I am an ordinary user and do not want to download Xcode, or the available disk space is not so large, can I not experience touch
bar
of course not. If you can't turn on this function directly, there will always be a big God who can transplant the function to make it run independently. Download a file called
touch é
app
note: the system should refer to point 1, otherwise it will not work. On the other hand, although the two look similar, Xcode turns on calling the native functions of the system,
touch é
it is the version transplanted by Dashen, and its reliability may be slightly poor. You can check the update from time to time to see if there is any repair or improvement (you can also turn on the automatic update function)
finally, of course, there is still a gap between the experience and the entity touch
bar, such as the lack of the function of word selection and association when inputting Chinese. Emoj can only choose the most commonly used one. If you want to have a perfect experience, you are recommended to use a touch
bar device.
5. Brief introction: Zhengzhou Zhongyi Mining Machinery Co., Ltd. (formerly state-owned Henan mining machinery factory) is a high-tech enterprise which is engaged in the development, development, proction and sales of urban construction waste treatment equipment. Its headquarters is located in Zhengzhou City, Henan Province, with a plant area of 15000 square meters. In 2010, the sales exceeded 100 million yuan, of which 10 million yuan was exported. Since its establishment, the company adheres to the scientific management method of modern enterprises, keeps improving, keeps innovating, and develops rapidly. It has become a new star in China's mining machinery instry. On September 8, 2006, it successfully developed and proced the first set of domestic mobile and construction waste treatment equipment, which has been successfully applied in Kunming City, Yunnan Province, There are construction waste treatment demonstration sites in more than 10 provinces in China. Zhongyi mining machinery has become the leading demonstration enterprise of mining machinery instry in Central Plains in response to the requirements of national environmental protection, which has been inspected by provincial and municipal leaders
legal representative: Liu Yongqiang
time of establishment: October 18, 2010
registered capital: RMB 5.18 million
Instrial and commercial registration number: 410183000011904
enterprise type: limited liability company (invested or controlled by natural person)
address: sanlizhuang, xingmi Road, Xingyang City
legal representative: Liu Yongqiang
time of establishment: October 18, 2010
registered capital: RMB 5.18 million
Instrial and commercial registration number: 410183000011904
enterprise type: limited liability company (invested or controlled by natural person)
address: sanlizhuang, xingmi Road, Xingyang City
6. It may be that people prefer to talk about such an item that has appreciated so fast.
7. Bitcoin is a virtual currency, not a math problem
8. SLT sea land transit box
CBA international cargo booking list
DGR dangerous goods
look, you may not know this, This is a special supplement for you
ICAO International Civil Aviation Organization
IATA International Air Transport Association
Sita International Telecommunication Association
consolidator
brake bulk agent distribution agent
tact tariff manual
OAG air cargo guide
GMT
UTC
DST
main / lower / upper deck Lower cabin Loading
SLI consignment book
AWB air waybill
Mwb air main waybill
HWB air sub waybill
gor agreement freight rate
GCR general freight rate
SCR special freight rate or designated commodity freight rate
grade freight rate of CCR cargo
uld container freight rate
mixed containers freight rate
construction rate proportion freight rate
add-on Account query freight data
combination of rates and charges section by section freight
documentation charges freight bill fee
distribution and distribution fees advance payment and advance payment
ccfee freight on delivery freight handling fee
weight charges air freight
other charges other charges
actual gross weight
volume weight Volume weight
chargeable weight
minimum charge
more specific description refers to the freight rate of the proct name
less specific description generally refers to the freight rate of the proct name
lar activity rules
death certificate
certificate of burials
unaccompanied baggage
Personal Effects belongings
DGR dangerous goods
m minimum freight rate
n freight rate of ordinary goods below 45kg, Q freight rate of ordinary goods above 45kg
C freight rate of specified goods R additional freight rate
s additional freight rate
u basic freight rate or freight rate of containerized equipment
e additional freight rate of containerized equipment X additional description of containerized equipment
y discount of containerized equipment
air courier Air express
courier on board special delivery
also notice please also inform
pod delivery voucher
NVD undeclared value
CBA international cargo booking list
cm manifest
CTM transhipment manifest
Cass cargo financial settlement system
CCA cargo freight change notice
CBA international cargo booking list
DGR dangerous goods
look, you may not know this, This is a special supplement for you
ICAO International Civil Aviation Organization
IATA International Air Transport Association
Sita International Telecommunication Association
consolidator
brake bulk agent distribution agent
tact tariff manual
OAG air cargo guide
GMT
UTC
DST
main / lower / upper deck Lower cabin Loading
SLI consignment book
AWB air waybill
Mwb air main waybill
HWB air sub waybill
gor agreement freight rate
GCR general freight rate
SCR special freight rate or designated commodity freight rate
grade freight rate of CCR cargo
uld container freight rate
mixed containers freight rate
construction rate proportion freight rate
add-on Account query freight data
combination of rates and charges section by section freight
documentation charges freight bill fee
distribution and distribution fees advance payment and advance payment
ccfee freight on delivery freight handling fee
weight charges air freight
other charges other charges
actual gross weight
volume weight Volume weight
chargeable weight
minimum charge
more specific description refers to the freight rate of the proct name
less specific description generally refers to the freight rate of the proct name
lar activity rules
death certificate
certificate of burials
unaccompanied baggage
Personal Effects belongings
DGR dangerous goods
m minimum freight rate
n freight rate of ordinary goods below 45kg, Q freight rate of ordinary goods above 45kg
C freight rate of specified goods R additional freight rate
s additional freight rate
u basic freight rate or freight rate of containerized equipment
e additional freight rate of containerized equipment X additional description of containerized equipment
y discount of containerized equipment
air courier Air express
courier on board special delivery
also notice please also inform
pod delivery voucher
NVD undeclared value
CBA international cargo booking list
cm manifest
CTM transhipment manifest
Cass cargo financial settlement system
CCA cargo freight change notice
9. Make your own 5 kilowatt hour power generation facility? Based on my experience in the electric power design institute, no matter what technical route or facilities you take, the power generation cost of such a small power generation facility will be much higher than the current power supply price of the power supply bureau, and its own power generation is not reliable, and it is possible to break down at any time. It's not worth it.
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