◎ 题干
It’s reported that over 70 different emoticons are used in text messages,      happy:)is the most popular.
A.to whichB.thatC.of whichD.which
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It’s reported that over 70 different emoticons are used in text messages,happy:)is the most popular.A.to whichB.thatC.of whichD.which…”主要考查了你对  【限制性定语从句】【非限制性定语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。