My School Life Hello! Everyone! I’m Wang Ping. I’m a middle school student in No.2 Middle School.Do you want to know my school life?Let me tell you. I go to school from Monday to Frid
It is sometimes said that the English are polite people. This can make life difficult for foreigners. Suppose a foreign boy asks an English girl to go out with him and she says. If I finish my work, I
的展开式中，所有奇数项系数之和为1024，则中间项的系数