题目

小敏利用海绵、桌子和砝码进行了如图的探究实验。下列分析不正确的是( ) A . 探究的问题：压力的作用效果与什么因素有关 B . 探究的方法：控制变量法 C . 探究过程分析：通过观察海绵凹陷面积大小判断受力效果 D . 探究的结论：压力的作用效果与压力的大小和受力面积大小有关 答案：C根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，然后将答案写到答题卡相应的位置上。选项中有两项多余选项。（共5小题；每小题2分，满分10分） A: Can't you do something about the service in your hotel, manager? B:  1. A: My breakfast, that's the problem. B: Yes? A: I ordered a breakfast from room service half an hour ago. B: Yes? A: I've phoned room service three times, but my breakfast still hasn't come. B:  2.  Surely, you are angry. A: I've got a meeting at nine. And now it seems I'll have to go there without breakfast. B: Sorry, madam. You ordered breakfast half an hour ago and you've phoned three times since then A:  3. B: You should have received your breakfast no later than five or ten minutes after you'd ordered it. A:  4. B: 1'll work into this and make sure that the breakfast is sent to you immediately. Full English breakfast, was it? A: Yes. Full English breakfast. B:  5. A: Thanks. A. I see. B. That’s right. C. You are welcome. D. So what, madam? E. That’s what I thought. F. Sorry, madam. What’s the problem exactly? G. I’ll deal with this and have it sent to your room right away.