填空题

【参考答案】

I
<上一题 目录 下一题>
热门 试题

单项选择题
A．Increase the sample number.B．Extend the time of the study.C．Observe the sample group of vegetarians.D．Both A and B.
A．Increase the sample number.
B．Extend the time of the study.
C．Observe the sample group of vegetarians.
D．Both A and B.
单项选择题
A．Negative.B．Critical.C．Neutral.D．Positive.
A．Negative.
B．Critical.
C．Neutral.
D．Positive.
相关试题