问题
单项选择题 B型题
符合研究对象标准人群中的作为研究对象的样本为()
A.对照人群
B.目标人群
C.患者人群
D.实际人群
E.研究人群
答案
参考答案:E
符合研究对象标准人群中的作为研究对象的样本为()
A.对照人群
B.目标人群
C.患者人群
D.实际人群
E.研究人群
参考答案:E
完形填空。 | ||||
Here 1 good news for children and their parents. Smoking is going to be banned (禁止) in primary and middle schools in China. We all know smoking 2 our health. So schools will ask their teachers to stop 3 on campus (校园). According to a report, there're 4 young smokers in China. Young people are the hope of our country. Let's say no to smoking for our country and for 5 . | ||||
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