试题与答案

酶变性失活的温度是() A.0℃以下 B.4℃ C.0~35℃ D.30~40℃ E

题型:单项选择题 B型题

题目:

酶变性失活的温度是()

A.0℃以下

B.4℃

C.0~35℃

D.30~40℃

E.80℃以上

答案:

参考答案:E

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题型:阅读理解

阅读理解。

     Tom: Can I put my football here?

     Peter: No, you can't.

     Tom: Where can I put my football? 

     Peter: You can put it behind the door.

     Tom: Can I park my bike in front of the classroom?

     Peter: No, you can't. Tom: Why not? Peter: Look at the sign., please.

     Tom: Yes, I must look for the right place for my bike.

     Peter: You can park your bike under that tall tree. There is not a sign "Don't park bikes there."

(     ) 1. Tom can put his football in front of the door.

( ) 2. Tom can't park his bike in front of the classroom.

( ) 3. Tom can park his bike under the tall tree.

( ) 4. There is a sign"Don't park bikes" in front of the classroom.

(     ) 5. There is a sign"Don't park bikes" under the tall tree.

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