问题
多项选择题
临床疗效试验中常用的对照方法有()。
A.标准对照
B.安慰剂对照
C.交叉对照
D.互相对照
E.自身对照
答案
参考答案:A, B, C, D, E
临床疗效试验中常用的对照方法有()。
A.标准对照
B.安慰剂对照
C.交叉对照
D.互相对照
E.自身对照
参考答案:A, B, C, D, E
根据句意从方框中选用合适的词,并用其适当形式填空。 | |
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