问题
单项选择题
在分析性流行病学中病例对照研究的特点是
A．观察时间长
B．需要研究的对象多
C．回忆偏倚较小
D．准确性较高
E．可靠性较差
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
在分析性流行病学中病例对照研究的特点是
A．观察时间长
B．需要研究的对象多
C．回忆偏倚较小
D．准确性较高
E．可靠性较差
参考答案：E
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