题目

Why does the man look terrible?A.He got the flu. B.He studied late last night. C.He had difficulty in sleeping. 答案：【答案】B【解析】【原文】W: Oh, man, I feel awful. I think I'm coming down with that flu everybody's been lately up with. Do you have it too?M: No, I mean I probably look terrible because I stayed up all last night studying, but I should be fine after some sleep.地球上南、北半球的划分界线是 A．赤道            B．20°W经线      C．0°经线         D．160°E经线