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问题 单项选择题

悬移质不能转化为（）。

A.河床质

B.推移质

C.溶解质

D.泥沙

答案

参考答案：C

填空题

在操作系统中，当因•资源竞争可能会引起死锁时，可以有两种策略对付：死锁的避免和预防以及 【6】 。
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填空题
用方框里适当的短语完成句子。
have nothing to do     out of breath     dozens of     see sb.writing     do with     lie reading    
hear sb.singing     in the beginning     in the end     get ready to
1. I’m      leave the theater for another.
2. The man       but to lie down on the grass in the garden last week.
3. The old man goes upstairs       .
4. The composer didn’t know what he      the concert.
5. There are       musical instruments in the orchestra.
6. Li Ping likes       in bed,but his parents said it’s too bad for eyes.
7. When I went into the classroom,I       the girl       at the desk.
8. When the teacher walked past,he       the students       .
9.         he didn’t like reading English but       he liked it.
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