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张先生，40岁，急性化脓性阑尾炎，急诊行开腹阑尾切除术，术前检查各项指标均正常。

手术结束后，手术器械的消毒灭菌方法应首选（）

A.压力蒸气灭菌

B.环氧乙烷灭菌

C.2%戊二醛浸泡

D.75%酒精擦拭

E.3%过氧化氢浸泡

答案

参考答案：A

阅读理解

阅读理解。

     Mr Green is an Englishman. He teaches English well His English classes are very interesting. He likes

us and we like him, too.

     Mr Green has two children, Mike and Nancy. Mike is eight and his sister Nancy is five. Mike goes

to school but Nancy doesn't. Mr Green likes to wear a T-shirt and a pair of jeans. Football is his favorite

sport. After school we often have a basketball match. Sometimes Mr Green watches and joins us. He

plays basketball just for us. 

1. Mr Green is ________.

A. a Chinese teacher    

B. an English teacher

C. a Japanese teacher    

D. ran English teacher

2. How many sons does Mr Green have?

A. Only one    

B. Two  

C. Three  

D. Not any

3. Nancy doesn't go to school because ________.

A. she looks beautiful    

B. she is seven

C. she is only five        

D. she doesn't like school

4. _______ is Mr Green's favorite sport.

A. Basketball  

B. Football  

C. running  

D.Volleyball

5. The story is about ________.

A. Mr Green's son        

B. Mr Green

C. Mike and Nancy      

D. a basketball
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单项选择题

按照齿轮运转的圆周速度分，速度大于0.5m/s的属于（）。

A、低速传动

B、极低速传动

C、中速传动

D、高速传动
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