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    精英家教网 > 高中英语 > 题目详情
    The number of the employees has grown from 1,000 to 1,200.This means it has risen ________ 20 percent.
    A．atB．byC．toD．with
    B
    　by后接增长或减少的幅度；to后接增长或减少后达到的具体数量。
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