[题目]Now one of the hottest topics people are talking about is the safety of food.A. that B. who C. when D. which 题目和参考答案——青夏教育精英家教网—

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【题目】Now one of the hottest topics_______ people are talking about is the safety of food.

A. that B. who C. when D. which

【答案】A

【解析】试题分析：句意：现在最热门的话题之一，人们谈论的是食品安全。此题考查定语从句，因为先行词前有最高级修饰，故选A。

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