What does BTC minus 3 mean

Short refers to selling positions, can also be called use, sell a certain type of currency loans, bullish. Do long: do and refer to the multi warehouse, can also be called Lido, also known as multi warehouse. Buy some kind of loan currency and be bearish

2. For hedging: to be long means to evade or wash away the risk of proct cost expansion caused by future price rise, and lock up the cost in advance. Short selling means to evade or wash away the risk of profit rection caused by the price decline in the future, and lock in the profit ahead of time

extended data

burst, under some special conditions, the customer's equity in the investor's margin account is negative. When the market changes greatly, if most of the funds in the margin account of investors are occupied by trading margin, and the trading direction is opposite to the market trend, it is easy to burst e to the leverage effect of margin trading

if the position explosion leads to the deficit and is caused by the investors, the investors need to make up the deficit, otherwise they will face legal recourse. The bigger the leverage is, the closer it is to the burst. We should be cautious when adding any leverage

BTC (business to customer)

also known as B2C, e-commerce according to a classification of trading partners, that is, commercial institutions to consumers of e-commerce. This form of e-commerce is generally based on the network retail instry, mainly with the help of the Internet to carry out online sales activities

because this mode saves the time and space of customers and enterprises, and greatly improves the transaction efficiency, especially for busy office workers, this mode can save valuable time

two BTB (business to business)

also known as B2B, refers to a kind of Internet market, which is the marketing relationship between enterprises. It combines the intranet with customers through B2B website, and provides better service for customers through the rapid response of the network, so as to promote the business development of enterprises. In recent years, B2B develops rapidly and tends to be mature

three otos (online to offline)

also known as o2o, namely "online to offline". The core of the business model of oto is very simple, which is to bring online consumers to real stores, pay online to buy offline goods and services, and then enjoy offline services

extended materials:

e-commerce is a business activity with information network technology as the means and commodity exchange as the center; It can also be understood as the activities of trading activities and related services in the form of electronic transactions on the Internet, intranet and value-added network. It is the electronization, networking and informatization of all aspects of traditional business activities

e-commerce usually refers to a wide range of business and trade activities all over the world, in the Internet open network environment, based on Browser / server application mode,

buyers and sellers do not meet each other to carry out a variety of business activities, to achieve consumer online shopping, online transactions and online electronic payment between merchants, as well as a variety of business activities, trading activities Financial activities and related integrated service activities are a new business operation mode

governments, scholars and business people in various countries have given many different definitions according to their own status and different angles and degrees of participation in e-commerce. E-commerce is divided into ABC, B2B, B2C, C2C, B2M, M2C, B2A (B2G), C2A (C2G), o2o, etc

since October 1, 2018, the Ministry of finance, the State Administration of Taxation, the Ministry of Commerce and the General Administration of customs have jointly issued the new regulations on tax exemption for e-commerce export enterprises in the comprehensive pilot zone of cross border e-commerce

BTC is bitcoin
LTC is lightcoin
eth is Ethereum
etc is Ethereum classic

To connect Bluetooth, you need to find the name of Bluetooth, click and match to connect successfully. As for btc-030, it is the model of Bluetooth headset. The name of Bluetooth is in the connection. Click the Bluetooth name to match. If the match is successful, the connection is successful

when Bluetooth headset is connected to FM, Bluetooth function must be turned on for both devices. Btc-030 displayed on FM is the name of Bluetooth headset to be connected. Generally, the Bluetooth name of Bluetooth headset is its own model, so you only need to click connect at this time

extended information :

1. The mobile phone can't find the Bluetooth headset:

possible reasons and solutions:

1. The Bluetooth headset is not in the pairing state. Solution: after the Bluetooth headset is turned off, long press the JetBlue Bluetooth multifunction key (i.e. red and blue lights flash alternately) to activate Bluetooth pairing

2, Bluetooth headset program error. Solution: restore the Bluetooth headset to the factory settings

3, Bluetooth program error. Solution: after the mobile phone is restarted, all pairing data stored in the Bluetooth of the mobile phone will be cleared; Search Bluetooth again

2. Common problems and solutions in the use of Bluetooth connection:

1. Bluetooth headset can not be charged: if it is idle for a long time, it takes about 20 minutes to activate the battery of Bluetooth headset. One of the Bluetooth headset or charger has been damaged. You can connect it with the intact device respectively and find out the problem after testing

2. Bluetooth headset can't be paired with mobile phone: please confirm whether the operation steps are correct. Bluetooth headset is not compatible with mobile phone. For example, a mobile phone with Bluetooth version 1.1 cannot be connected to a headset with Bluetooth version 2.0

3. The Bluetooth headset is always disconnected after connecting with the mobile phone: the power of the Bluetooth headset is exhausted, and the Bluetooth headset needs to be charged as soon as possible. The compatibility between Bluetooth headset and mobile phone is not very good. The Bluetooth signal transmitted by mobile phone can not be received by the headset. Once there is a barrier between the headset and mobile phone or the distance is a little longer, the headset will automatically disconnect from the mobile phone, and then automatically shut down

4. Bluetooth headset can't listen to music: at present, many new mobile phones can only support stereo Bluetooth headset, which has built-in A2DP function. If you still use one ear headset, you can't listen to songs on your mobile phone. For example, Samsung's series of new mobile phones. The Bluetooth version of the mobile phone is relatively low and does not support Bluetooth audio transmission. Basically, the mobile phones before 2005 didn't use Bluetooth to listen to music

some mobile phones can listen to music with mono or binaural stereo Bluetooth headset, but they can hear mono music. For example, Nokia's 7610 / N70 and other mobile phones can realize stereo function by adding Bluetooth player

5. Service life of Bluetooth headset: the service life of original Bluetooth headset can reach more than 500 times of repeated charging, and some excellent procts can even reach more than 700 times of repeated charging. The quality of high imitation Bluetooth earphones in China is different. Generally, the earphones proced by factories with better quality can be recharged about 300 times. If it's from a fake factory, it won't take long for the battery to be scrapped

in general, there will be no signal in high imitation headphones immediately, and some original headphones will have obvious noise

pass the distance test. Put on the earphone and walk about 5 meters away from the mobile phone. If there is no noise or only slight noise in the call, it proves that the earphone is original. If you walk 2 or 3 meters away, the noise is very obvious, and you can't even answer or make calls when you walk around, it's undoubtedly an imitation

7. How to use Bluetooth headset to listen to music and chat on the computer: Bluetooth headset can not only be used on the mobile phone, but also can listen to music and chat on the computer. First of all, a Bluetooth adapter should be equipped. The adapter is used to connect the Bluetooth headset with the computer