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问题 单项选择题 A1型题

在一饮酒与胃癌的关系病例对照研究中，若对照组女性比例显著高于病例组，则很可能产生的偏倚是（）

A.测量偏倚

B.信息偏倚

C.混杂偏倚

D.回忆偏倚

E.失访偏倚

答案

参考答案：C

补全对话，情景问答
从方框中所给的选项中选择正确的选项补全对话。
 
  A. What color is her dress?
  B. What does she look like?
  C. Hi, Mary.
  D. Where's she from?
  E. You are right.

A: Hi, Lucy.
B:   1  
A: Do you know Kumiko? She is in Class Four, Grade Seven.
B: Sorry, I don't know her.   2  
A: She's tall. She has long brown hair and big black eyes.
B:   3  
A: Her dress is yellow, and her pants are green.
B:   4  
A: She is from Japan.
B: Oh, I see. Are you friends?
A: Yes.   5  
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问答题 简答题

自粘法铺贴卷材应符合哪些规定？
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