单选题The best statement of the main idea of this passage is that _____.Ahuman brains differ considerablyBthe brain a person is born with is important in determining his intelligenceCenvironment is crucial in determining a person’s intelligenceDpersons having identical brains will have roughly the same intelligence
单选题
The best statement of the main idea of this passage is that _____.
A
human brains differ considerably
B
the brain a person is born with is important in determining his intelligence
C
environment is crucial in determining a person’s intelligence
D
persons having identical brains will have roughly the same intelligence
参考解析
解析：
由第二段第一句“The importance of environment in determining an individual’s intelligence…”以及文章中的举例论证，可知环境因素在一个人智力发展过程中有关键性的决定作用。
由第二段第一句“The importance of environment in determining an individual’s intelligence…”以及文章中的举例论证，可知环境因素在一个人智力发展过程中有关键性的决定作用。
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