◎ 题干
What we have to admit is that never in the past thirty years __________ so greatly as today.
A.has China changedB.China has changed
C.did China changeD.China had changed
◎ 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“What we have to admit is that never in the past thirty years __________ so greatly as today.A.has China changedB.China has changedC.did China changeD.China had …”主要考查了你对  【全部倒装】【部分倒装】【省略句】  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。