题目

It makes no difference __________. A.whether will you come tomorrow. B.Whether or not will be pass the exam C.If he will come to the meeting or not D.Whether he will come to the meeting or not 答案：D日常生活中，常见到搬运工人利用斜面把货物搬上车，这样做可以（ ）A．既省力又省功B．只省功不省力C．只省力不省功D．既不省力也不省功