试题与答案

下图是表示物质分子的示意图，图中“●”和“○”分别表示两种含有不同质子数的原子，

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题型：不定项选择题

题目：

下图是表示物质分子的示意图，图中“●”和“○”分别表示两种含有不同质子数的原子，则图中表示单质的是 [ ]

A.

B.

C.

D.

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A,B,C,D

考点：单质和化合物
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