流行病学的偏倚是指A.抽样误差 B.系统误差 C.随机误差 D.数据误差 E.逻辑误 发布时间:2017-06-05 07:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 流行病学的偏倚是指A.抽样误差B.系统误差C.随机误差D.数据误差E.逻辑误差
题型:单项选择题 — I think it's time for us to leave now.— ________.A. See you later B. Go ahead, please. C. You, too.D. Thanks. 查看答案