Is there a quota for bitcoin trading

1. The upper limit of bitcoin is not the exact figure of 21 million. 21 million is calculated according to the mining rules
in the first four years, 50 pieces were g out every ten minutes: 50 * 6 * 24 * (365 * 4 + 1) = 10519200 pieces
in the second four years, 25 pieces were g out every ten minutes: 25 * 6 * 24 * (365 * 4 + 1) = 5259600 pieces
according to the sum formula of infinite equal ratio sequence, the final total amount is infinitely close to 21038400 pieces (10519200 * 2)
as long as the mining rules are not changed, the number of bitcoins will never exceed 21038400

2. A mining Trojan named wanna miner uses & quot; Eternal Blue & quot; Loopholes spread in the local area network, the infected machine will be built into a robust Botnet, support intranet self-renewal, long-term latent in the computer to dig Monroe money.. Tencent security Royal see Threat Intelligence Center reminds enterprise users to be vigilant, and can choose Tencent computer manager security & quot; Imperial point & quot; Defense against such attacks.

3. 1. Walk 230 meters from Shenzhen Bao'an airport to terminal B of Bao'an airport, take airport line 7 (take 9 stops) to Lihu Garden Station, then transfer to m379 Road (original 662 Road) (take 5 stops), 310-315 Ring Road (315 Road) (take 6 stops), 312 Road (take 6 stops), m378 Road (original 616 Road) (take 6 stops), m267 Road (original 942 Road) (take 6 stops) to Buji Street (Buji xinyijia) station. Take a taxi for 35.7 km, green Taxi: the cost is about 110 yuan. 3. Walk about 250 meters from Shenzhen Bao'an airport to entrance D of East Station of Metro Airport, take subway Luobao line (line 1) (6 stops) to Bao'an central station, then transfer to Metro central line (line 5) (18 stops) to entrance B of Buji station. About 960 meters (1.0 km by taxi, green Taxi: about 8 yuan). After 23:00 p.m., the cost is about 8 yuan; Red Taxi: about 13 yuan. After 23:00 p.m., the cost is about 13 yuan) to Buji central square

4. Online banking of Bank of communications has the function of settlement and sale of foreign exchange, but it must open the registered version of online banking, SMS version / certificate version. It can exchange RMB and foreign currency in financial management, but it is not real-time. There will be an approval process, but it will be very fast.

5. You can trade countless times a day, as long as you have money. But I haven't tried it. I can operate it three times a day at most, but it should also depend on the platform. Some platforms may have regulations that they can't operate many times a day, so it still depends on what platform you choose.

6. It's true that there is a threshold, but it's too low. For example, the okex exchange I use can buy bitcoin for at least 10 RMB. It's not too much to say that there is a zero threshold.

7. There is an upper limit to the total amount of bitcoin. The inventor of bitcoin has explained that.

8. I don't think so, but at least it costs a few hundred yuan

9. I don't think so, but at least it costs several hundred yuan. It's too little for you to play. It's not enough for the service charge.