As for how much of IQ comes from the genes and how much come from experiences,______. A healthy person has______. chromosomes a

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问题 As for how much of IQ comes from the genes and how much come from experiences,______.
A healthy person has______. chromosomes all together.

选项 A、6
B、23
C、37
D、46

答案B

解析 细节题。题意为:"一个健康的人共有______对染色体"。根据文章第二段第二句括号里的内容可知选项"23"正确。
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