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单选题
______ that distinguish human beings from other primates are related to the ability of people to stand upright and walk on two legs.
A
Many of the physical characteristics
B
Of the many physical characteristics
C
The physical characteristics
D
There are many physical characteristics
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参考解析
解析：
并非所有区别人类与灵长类动物的特点都和直立行走能力有关。从语法角度而言，后面出现了动词are，知道前半句应该是句子的主语，可以排除选项B和选项D。根据句意应该选择A。C项表达错误。
并非所有区别人类与灵长类动物的特点都和直立行走能力有关。从语法角度而言，后面出现了动词are，知道前半句应该是句子的主语，可以排除选项B和选项D。根据句意应该选择A。C项表达错误。
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Of the many physical characteristicsC
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