下述哪项关于放射性致癌的描述是错误的A.组织损伤的程度与放射剂量有关 B.RNA是放

题型:单项选择题

问题:

下述哪项关于放射性致癌的描述是错误的

A.组织损伤的程度与放射剂量有关

B.RNA是放射损伤的主要物质

C.细胞具有修复放射损伤的能力

D.职业性放射暴露与癌的发生有关

考点:普通考研西医综合西医综合
题型:单项选择题

阅读理解。

     An 11-year-old schoolboy is ageing (变老) five times faster than his friends because of a strange

illness, which is often seen in old men. Now he is fighting against it.

     Harry Crowther's bones (骨头) have started to break into small pieces, and he has poor body

condition (状况). However, he does not let it stop him from being an energetic teenager.

     His parents know there's no cure (治愈方法) and that his fast ageing cannot be halted. His mother

Sharon Crowther told Sky News, "It's been hard, but we just take each day as it comes and let Harry

live his life to the full."        

     The boy told Sky News, "Sometimes my friends look at me for a long time. It's just annoying and

makes me feel very sad."

     Harry, who lives with his mother and IT director father John, 41, sister Emma, 16, and 14-year-old

brother Jack, is trying not to let the illness hold him back.

     "I want to be a marine biologist (海洋生物学家) when I grow up," he said. "I will never give up

and will just keep trying."

1. The underlined word "halted" in the passage means "_______".

A. stopped

B. broken      

C. developed

D. started

2. When does Harry Crowther feel annoyed according to the passage?

A. When he becomes older year by year.    

B. When his parents try to cure his illness.

C. When he can't achieve his dream.    

D. When his friends look at him for a long time.

3. How many people are there in Harry Crowther's family?

A. Three.      

B. Four.          

C. Five.        

D. Six.

4. Which of the following is NOT true about Harry Crowther?

A. He doesn't give up in his life.

B. He has no friends at all.

C. His father works as an IT director.  

D. He is the youngest of the three kids.

5. What do you think of Harry Crowther?

A. Clever and healthy.  

B. Brave but rude.

C. Active and brave.              

D. Strange but energetic.

题型:单项选择题

《硫化氢防护安全管理规定》要求,对可能发生硫化氢中毒的作业场所,在没有适当防护措施的情况下任何单位和个人不应(),同时作业人员有权拒绝该作业,并可直接向上级安全主管部门报告。

题型:单项选择题

我国古代荀子曾说过:“法不能独立,类不能自行,得其人则存,失其人则亡。”说明了下列哪个道理

A.文化等社会因素对法律作用的发挥有重要影响

B.人的认识水平会限制法律发挥作用

C.法律不是调整社会关系的唯一手段

D.法律涉及人的外部行为,不涉及人的思想

题型:单项选择题

—I’m too busy. Could you do_______ to help me?

—Of course. I can do_______ for you if you want me to.

A.anything; something

B.something; anything

C.anything; anything

D.something ; something

题型:单项选择题

—Which do you like best, coffee, water or juice?

     . I only like tea.

A.All                  B.Neither              C.None

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