There are two major problems linked with atomic power plants, ______ the first concerns nuclear waste.

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问题 There are two major problems linked with atomic power plants, ______ the first concerns nuclear waste.

选项 A、of which
B、of the two
C、of them
D、of the plants

答案A

解析本题考查的是定语从句的用法。of which引导的是非限制性定语从甸，先行词为problems，句意为“两个主要问题中的第一个为核废料”。

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英语

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