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问题 单项选择题

单桩竖向抗压极限承载力由（）和地基土的强度这两个因素决定。

A.桩本身的材料强度

B.桩本身的刚度

C.地基土的强度

D.桩本身的长度

答案

参考答案：A

选择题

下图中能正确表示北半球夏至日光照情况的是（图中虚线圈为极圈，直线箭头表示光线，弧线箭头表示地球自转方向）

[ ]

A、A

B、B

C、C

D、D
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填空题
用方框中所给单词或词组的适当形式填空。
look, arrive, wash, fail, live, go, move, neither…nor…, not…until…, either…or…
1. To my surprise, Han Juan __________ her maths exam last week.
2. I don't think Sam can help you because he ___________ to the market.
3. Their classroom is too dark. So they have decided _________ to a brighter one.
4. __________ your clothes before you go out to play.
5. Do you enjoy __________ in Lanzhou?
6. I'll let ________ you _________ he go there, I think both of you are good.
7. He had _________ food________ water flor several days. Perhaps he was ill.
8. He _______ finish his work _________ eleven o'clock.
9. As soon as he _________ Guilin, he would call me.
10. he ________ very tired, doesn't he?
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