实验室实验法在（）方面优于自然实验法。_精华吧

实验室实验法在（）方面优于自然实验法。

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实验室实验法在（）方面优于自然实验法。

A.对变量的控制程度

B.随机分配程度

C.便利性

D.外部效度

正确答案：对变量的控制程度；随机分配程度；便利性

Tag：儿童发展程度变量时间：2022-01-15 21:47:42

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