◎ 题干

The population of many Chinese cities has _________ doubled in the past 30 years.
A.larger thanB.more thanC.as great asD.quite a bit
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The population of many Chinese cities has _________ doubled in the past 30 years.A.larger thanB.more thanC.as great asD.quite a bit…”主要考查了你对  【副词的比较级】【疑问副词】【连接副词】【副词】  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。