【单选题】
From the passage we learn that human brains.
A.improved the art of speech exclusively
B.developed only with the use of tools
C.and the art of speech had a mutual improvement
D.accorded with languages that stimulate them
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根据网考网移动考试中心的统计,该试题:
8%的考友选择了A选项
5%的考友选择了B选项
70%的考友选择了C选项
17%的考友选择了D选项