什么是反应型表面活性剂？

用人工方法如何测试制动距离？

请认真阅读下面对话，并根据各题所给首字母的提示，写出一个英语单词的完整、正确形式，使对话通顺。

M=Mary

T=Tom

M:  Hi, I'm going door to door tonight to tell people about the Student Action Union.

T:  I think I read something in the (76)n      last week.

M:  Yeah, we are trying to (77) p      and preserve some of the open spaces on campus.

T:  You are the group that's (78) a　　　　against the extension of the parking lot next to Darwin Hall,

right?

M:  That's us. We just feel it is important to save some of the (79) n      beauty of the campus.

Some of those trees are hundreds of years old.

T:  It's a pretty (80) p      . My friends and I had picnics over there by the stream.

M:  We are going to (81) o    a demonstration on Thursday afternoon.

T:  Well, I have a class on Thursday afternoon.

M:　But maybe you could (82) s    this appeal letter. We are going to hand it in to the administration

to demonstrate how the students feel about this.

T:  Sure, let me get a pen.

M:  I have a pen right here. And let me (83) l       you this little book about the Student Action

Union. Maybe you could come to some of our meetings. We get (84) t    once a month.

T:  Yeah, I'd like to know more about your group. Let me know (85) w     the next meeting is and I

will try to be there.

隐形义齿基托增厚，咬合升高，最常见原因为（）

A.人工牙打磨过薄

B.上下型盒之间有石膏或杂物填充

C.灌注机套筒壁残留树脂

D.铸道角度不当

E.灌注压力不足

使用万用表时，必须特别注意转换开关位置是否正确并符合待测量程。

以下哪项不是结构化面试中追问的具体策略（）。

A.营造宽松的面试氛围

B.学会倾听

C.灵活地运用追问方式

D.利用引导型问题追问自己需要的答案

E.追问要适时、适度