题目内容

下列叙述正确的是()

A. 所有的物质都有旋光性
B. 旋光性是由分子之间的相互作用导致的，与单个分子的性质无直接关系
C. 将两种比旋光度相反的物质等量混合，混合物的溶液不旋光
D. 由手性分子组成的纯物质的溶液一定有旋光性

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