On the morning of December 13, Google co-founder Sergey Brin and the Google CEO Pachai visited the Chinese chess house and talked with Nie Weiping. This is the first time that Sergey Brin has visited China for Go, and Google CEO Pachai has come to China for the second time in the year. In April of this year, after the robot AlphaGo developed by Google's DeepMind and the Korean chess player Li Shishi, the Google CEO Pachai had visited China specially, and in the Nie Weiping Go game, with Chess Nie Weiping, Ke Jie Jiu Duan and Guli 9 Waiting for the exchange of topics such as Go and technology. Google founder Sergey Brin, Google CEO Pachai and Chinese Go players Sergey Brin appeared in the match between AlphaGo and Korean player Li Shishi. He expressed his respect to Li Shishi and publicly expressed his opinion: "Go is an aesthetic, very happy to show such a wonderful pair. Bureau, compared to chess, Go allows us to comprehend life more and see the beauty of the strongest players on the plate. We are very happy to be able to show that beauty on the computer. Stand here It is a great honor to go to the match between AlphaGo and Li Shishi." However, when he came to China this time, Sergei Brin’s purpose was not known. Recently, DeepMind has publicly announced that AlphaGo will return to play again in 2017, but the details have not been disclosed. The outside world believes that AlphaGo will challenge the Chinese Go player Ke Jie nine-segment - the latter is currently ranked first in the world. As Google co-founder, Sergey Brin has been responsible for Google's technical aspects and is currently a board member of Google's holding company, Alphabet. On December 8th, Google also held a developer conference in China and launched the official website of the Chinese developer whose domain name is suffixed with "cn". Silicon Transistor are solid-state semiconductor devices with functions such as detection, rectification, amplification, switching, voltage regulation, and signal modulation. The transistor acts as a variable current switch and can control the output current based on the input voltage. Unlike ordinary mechanical switches (such as Relay and switch), transistors use electrical signals to control their opening and closing, and the switching speed can be very fast. The switching speed in the lab can reach more than 100GHz. Silicon Transistor, Power Transistor, IGBT Transistor, N-Channel Transistor, PNP Transistor YANGZHOU POSITIONING TECH CO., LTD. , https://www.yzpst.com