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  3. There are two factors which determine an individual’s intelligence. The firs

There are two factors which determine an individual’s intelligence. The firs

游客2023-07-12  77
问题     There are two factors which determine an individual’s intelligence. The first is the【B1】______of brain he is born with. Human brains differ【B2】______, some being more capable than others. But no matter how good a brain he has to begin with, an【B3】______will have a low order of intelligence unless he has【B4】______to learn. So the second factor is the sort of environment in which he is【B5】______. If an individual is handicapped environmentally, it is likely that his brain will【B6】______to develop and he will never attain the level of intelligence of which he is【B7】______.
    The importance of environment in determining an individual’s intelligence can be demonstrated by the case history of the【B8】______twins, Peter and Mark. Being identical, the twins had identical brains at birth. And their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster homes.【B9】______Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually.【B10】______. Mark’s I. Q was 125, twenty-five points higher than the average and fully forty points higher than his identical brother.【B11】______. [br] 【B1】
选项
答案 sort
解析 sort意为“种类，类别”。空格后用一定语从句对所填名词进行了解释，即他天生所具有的大脑的什么…。从后文提到人智商不同，我们可知第一个决定人智商的不同的因素是人的大脑的种类。
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