题目内容
关于群体易患性正确的说法是
2021-09-28
A.易患性在群体中呈连续分布
B.易患性平均值不能反映每个个体的发病风险
C.易患性平均值越高,群体发病率越高
D.易患性平均值越高,阈值越低
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