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问题 单项选择题

电绝缘服装是消防员在高电压作业时穿着的用于保护自身安全的防护服装，一般应能耐受（）高压。

A.5000V

B.6000V

C.7000V

D.8000V

答案

参考答案：C

改错题
短文改错。
     此题要求改正所给短文中的错误，对标有题号的每一题做出判断：
     如有错误（每行只有一个错误），则按下面情况改正：
     此行多一词：把多余的词用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉。
     此行缺一词：在缺词处加一个漏字符号（^），在该行右边横线上写出该加的词。
     此行错一词：在错词的下面划一横线，在该行右边横线上写出改正后的词。
     注意：原文没有错误不要改。
     Did you enjoy yourself yesterday? I suppose you do. But I'd
like to tell you what a bad day I had yesterday. Nothing
just went wrong. On the morning, my alarm clock didn't ring,
since I woke up an hour late. I was in such a hurry that I burnt my
hand when I was cooking the breakfast. Then I ran out of the house
to catch the 8:30 buses. This is the bus I usually take. But, you
may laugh, I missed it of course. I am very unhappy, and scared
as well because teacher hates the students coming late to school.
So I ran three miles to school only to discover that anybody
was there. The school was quiet but peaceful. Our classroom was
locked. I realized that moment. It was Sunday. 		1. _____
2. _____
3. _____
4. _____
5. _____
6. _____
7. _____
8. _____
9. _____
10. _____
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单项选择题

箍筋弯钩的转折角度，对一般结构不应小于90°，对抗震要求的结构，应为（）。

A、60°

B、80°

C、125°

D、135°
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