问题
单项选择题 A1型题
下列哪一项论述是正确的（）
A.将混杂因素进行配比称匹配过头
B.抽样调查是为了早期发现、普治患者
C.暴露是指曾经接触某研究因素或具备某种特征
D.病例对照研究是从因到果的研究
E.病例对照研究属于实验性流行病学研究
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
下列哪一项论述是正确的（）
A.将混杂因素进行配比称匹配过头
B.抽样调查是为了早期发现、普治患者
C.暴露是指曾经接触某研究因素或具备某种特征
D.病例对照研究是从因到果的研究
E.病例对照研究属于实验性流行病学研究
参考答案：C
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| We all hear about a kind of feeling called ESP (超感官知觉). And we know a great many stories about it. Here I want to ask you, "Have you ever 1 felt that someone you know was in trouble-and 2 ? Have you ever dreamed of something that came true later?" Maybe you have ESP. ESP 3 Extra Sensory Perception. It may be called a sixth sense. It seems to let people know about events 4 they happen, or events that are happening some distance away. Here is a(n) 5 0 : A woman was doing washing. Suddenly she 6 , "My father is dead!I saw him 7 in the chair!" Just then, a telegram came. The woman's father had 8 of a heart attack. He died sitting in a chair. There are thousands of stories like this 9 record. Scientists are studying them to find out 10 is behind these strange mental 11 . Here's another example-one of hundreds of dreams that have come true. A man dreamed he was walking along a road 12 a carriage came by. The driver said, "There's room for one more." The man felt the driver was 13 ,so he ran away. The next day the man was getting on a crowded bus. This bus driver 14 . "There's room for one more." Then the man saw the driver's face was the same face he had 15 in the dream. He 16 get on the bus. As the bus drove off, it crashed and 17 flames. Everyone was killed! 18 people say stories like these are lies or coincidences. Others, including some scientists say the ESP is 19 from studies of ESP, we may some day learn 20 about the human mind. | ||||
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