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问题 单项选择题

男性，15岁。右手电烧伤，入口处(右拇指)皮肤炭化，出口处不明显。入院后采用暴露疗法，每日消毒皮肤2～3次。手术探查日期应选在伤后

A．1天
B．2～3天
C．4～9天
D．10～12天
E．13～15天

答案

参考答案：B

句型转换

按要求改写下列句子。

1. She has to go home now. (改为否定句)  

She _____ _____ to go home now.  

2. They didn't talk any more in class. (改为同义句)  

They talked _____ _____ in class.  

3. I had to take a bus because it was too far. (就画线部分提问) 

 _____ _____ you have to take a bus ?  

4. David missed the early bus this morning. (改为同义句)  

David _____ _____the early bus this morning.

5. The boy is very strong, He can carry the heavy basket.(合并为一个句子)    

The boy is _____ _____ to carry the heavy basket.
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单项选择题

对资源采用按序分配策略能达到下列______目的。

A．死锁预防

B．死锁避免

C．检测死锁

D．解除死锁
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