Installation of Ethereum in 2019

1. The network will be upgraded to Constantinople & Petersburg at block height of 7280000. L, Z, b show that it will be upgraded on March 1, 2019 Beijing time. I don't know if the upgrade is successful

2. According to the requirements of the manual, first measure whether the red and green lines correspond to the L1 of the interface; Is the yellow and black line corresponding to L2? If so, it must be the correct connection. Although the telephone line can be divided into positive and negative poles, the terminals can be connected at will, so there is a rectifier directional circuit inside the telephone. Even if the L1 and L2 lines are wrongly connected, the equipment will not be burnt out, so you can safely and boldly test.

3. Stock software which can query the specific details

4. It's near the space crop garden of Agricultural Science Center in Futian Xiangmi Lake area:
1. Take No. 113 (13 stops) and No. 59 (27 stops) from Dongmen station (1) to Shennan Xiangmi interchange station (2) and then take No. k318 (3 stops) to Xiangmi Lake Road North Station. Walk about 350 meters to the space crop garden of Agricultural Science Center
2. Take bus No.3 (take bus No.14) from Dongmen station to shopping park station (bus stop), then take bus no.k318 (take bus No.7) to Xiangmihu Road North Station. Walk about 350 meters to the space crop garden of Agricultural Science Center
3. Take bus 103b (14 stops) from Dongmen station to Zhongfu primary school station, then take bus b689 (formerly 241 stops) to Xiangmihu Road North Station. Walk about 350 meters to the space crop garden of Agricultural Science Center
4. Walk about 610 meters from Dongmen station to entrance / exit C of Laojie station, take subway Luobao line (line 1) (take 8 stops) to entrance / exit b of Gongmiao station, go to Celebrity Club station on nongyuan Road, and then take bus 245 (take 1 stop) to nongyuan Road station. Walk about 600 meters to the space crop garden of agricultural science center

5. virtual currency is the concept corresponding to physical currency. Physical currency is the paper money and coins we pay for vegetables in our life, the deposits in the bank, etc. virtual currency is the "currency" that can be used to circulate and exchange virtual goods equivalently in the virtual world, such as the game currency in the game, etc

as for futures, it's a completely different concept. Futures is one of the financial derivatives. It's a standardized contract for trading in the futures exchange. It needs to pay margin. It can do long or short trading

thank you, please accept

6. The cowhide wallet made by Zhang Zhenyue is very good. I want to make my own handiwork at home. If I don't pay attention to it, I'll buy 0.6cm thick cow leather, directly use ordinary large needles, and just wear more money to sew it

7. Domain Kingdom, fire currency, okex, bitfinex and bitMom are all the top exchanges in the world, and they can trade ether currency. Moreover, in addition to Ethernet currency, there are also mainstream currencies such as
bitcoin
,
lightcoin
in the realm Kingdom, with more choices.

8. Olympic Sports Center in January 2020, concert tickets are at 200 yuan a piece.

9. It is obvious to all that small and micro enterprises are hard to survive. However, it is really hard for them to transform and upgrade
let's analyze from the following points: * pure hand, hope to adopt *
1: the first kind of small and micro enterprises, do sales on a commission basis. It's very difficult to do agent sales. Why? Because the competition is purely based on sales strength, and there are not too many other factors or thresholds. This also leads to too many people doing it, the market space is getting smaller and smaller, and the pressure of survival is getting greater and greater. If this kind of enterprises want to transform, the simple suggestion is to find new procts and cooperation. On the premise of ensuring the original sales chain, they should take out funds to train their employees and open up more market space
2: the second kind of small and micro enterprises is engaged in proction. Proction is also difficult to do. Why? Because the technology is too low, vicious competition can be said to be fierce, and the homogeneity of goods is too serious. And this kind of enterprises need to train technology and develop technology. A friend I know works for national instrument company in America. He told me that the patent R & D cost of a technology they acquired in Europe is 6 million euros. After he returned home, he went to Nanjing and found that the same technology was sold in China for 600000 yuan. I hope that this kind of small and micro enterprises can also be inspired to expand their overseas sales. I think it is a good plan. And if there is no way to hook up with foreign sales lines, I think we can consult with international trade companies, and maybe we will receive some good suggestions
if we want to talk about the difficulties in the implementation process, I think it may not be easy for these two types of enterprises to maintain their income while making progress and learning. The interest brought by many small loans may also be a heavy burden, but I think we must be prepared for danger in times of safety and be fearless in the face of danger. In times of safety, we should train employees and improve technology, When you are nervous, think calmly, don't borrow money disorderly, and ensure the stability of debt ratio
* adoption of pure hand lookout *: B