题目

What’s wrong with Jane?A. She misses her home very much.B. She hasn’t received her mother’s letter.C. She is worried about her mother’s health. 答案：【答案】A【解析】M: what’s the matter with Jane? She has been sitting their for hours. W: a letter from her mother made her feel homesick.如图所示，所示的电路中，电流表A1测的是通过 的电流。若电流表A1的示数为0．2A，电流表A2的示数为0．5A，则通过灯L2的电流为 A。