问题 单项选择题 A1/A2型题

对于辐射所致细胞增殖能力不可逆的丧失的合理解释,你认为不正确的是()。

A.细胞失去形成集落或克隆的能力

B.细胞失去无限增殖分裂能力

C.细胞失去无限增殖分裂能力,可能有一次或几次有丝分裂

D.下一次细胞有丝分裂时细胞所有机能和功能的即刻丧失

E.丧失再生增殖能力就是受照射后的致死性反应

答案

参考答案:D

解析:辐射所致细胞增殖性死亡不是指细胞所有机能和功能的即刻丧失,而是细胞失去无限增殖分裂能力,但可能有一次或几次有丝分裂。

阅读理解

阅读理解。

     The Zhao family live in a very nice city. They want to have the best of everything. They live next to the

Wu family and watch them all the time. The Zhao family want their place to be better than the Wu's. They

have a bigger television, bigger refrigerator and even brighter shoes.

    "Little Wu has a new bicycle. It goes faster than yours. Tomorrow I will buy you a better bicycle."

     "Mr. Wu has a large fish. I'm going to the market to buy a bigger fish." 

     "Mrs. Wu has a new chair. I'm going to get a bigger, stronger, prettier one. My place is going to be better

than hers."

    A friend asks Mrs. Wu, "Do you think the Zhao family have a better house than you?"

    Mrs. Wu says, "The Zhao? Oh, the people next door. I don't think about them much. They always look a

bit sad (有点不开心). I think we have a much better life and home. We are happier; we have more fun and

our family life is warmer."

1. Mrs. Zhao wants ______. [ ]

A. to have the same as Mrs. Wu

B. everything better than Mrs. Wu

C. a happy home

2. The Zhao's have a bigger refrigerator because ______. [ ]

A. their family is larger

B. they have a lot of money

C. they want to have a better place than the Wu's.

3. Mrs.Wu ______.[ ]

A. wants to have the same as Mrs. Zhao

B. is not interested in Mrs. Zhao

C. does not know Mrs. Zhao

4. The story tells us ______. [ ]

A. to work hard

B. to try to be happier than other people

C. buying things can make us happy

5. Which is Not RIGHT? [ ]

A. The Zhao's life is not the same as the Wu's

B. The Wu family are happier than the Zhao family

C. The Wu family are richer than the Zhao family

单项选择题 A1/A2型题