题目

选出适当的句子补全对话A: Excuse me, may I ask you some questions?B: Certainly.A:     1    B: I eat them every day.A: Do you like them?B:    2     But my parents say they’re good for my health.A: Do you like junk food?B:    3     But I try to eat it only once a week.A: Why？B:    4     A: How long do you sleep every night?B:   5    _ A: Oh, I think you must be in good health.  A.      No , I’m not.B.      Yes , I do.C.      No, I don’t.D.     About nine hours.E.      How often do you eat fruit and vegetables?F.    �（2009•宾阳县二模）（1）；（2）将下面代数式化简，再选择一个你喜欢的数（要适合哦！）代入求值：．