试题与答案

在设计探究实验时,下列哪一组条件不能作为对照实验的变量( ) A.有光、无光 B

题型:选择题

题目:

在设计探究实验时,下列哪一组条件不能作为对照实验的变量(  )

A.有光、无光

B.有光、无水

C.干燥、湿润

D.有空气、无空气

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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