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问题 单项选择题

如果你每小时接受0.02rad的α射线照射，4h后你将接受到（）的剂量。

A.3.2rem

B.1.6rem

C.0.8rem

D.0.4rem

答案

参考答案：B

补全对话，情景问答
从方框中选择合适的选项完成对话。   

Kim: I, Tim,     1    
Tim: It was fantastic, really fantastic.
Kim: Did you go to the zoo?
Tim:     2    1 went to the aquarium. Look, here are my photos.
Kim: Were there any sharks?
Tim: No, there weren't any sharks, but there were some really clever seals.
Kim: Wow,       3             4           
Tim: Well, I hung out with some friends and I bought a souvenir.

A. that sounds wonderful.
B. How was your school trip?
C. No, I didn't. 
D. What else did you do?
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单项选择题

气质是指人相对稳定的个性特点、风格和气度，是人的心理行为所表现出来的动力（）。

A.基础

B.源泉

C.特征

D.条件
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