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Although human evolution has _______ in the past 10,000 years, we are changing our environment faster still.
A.linked upB.loaded up
C.sped upD.split up
C
C 本题考查动词短语辨析。句意:虽然人类进化在过去的一万年已经加快了,但我们正在更快地改变着我们的环境。link up联合,连接;load up装载货物;speed up加速;split up分组,分解,分离。
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