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 本題考查動(dòng)詞短語辨析。句意：雖然人類進(jìn)化在過去的一萬年已經(jīng)加快了，但我們正在更快地改變著我們的環(huán)境。link up聯(lián)合，連接；load up裝載貨物；speed up加速；split up分組，分解，分離。
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