The case history of the twins appears to support the conclusion that__________.A

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问题 The case history of the twins appears to support the conclusion that__________.

选项 A.individuals with identical brains seldom test at the same level
B.an individual's intelligence is determined only by his environment
C.lack of opportunity blocks the growth of intelligence
D.changes of environment produce changes in the structure of the brain

答案C

解析由最后一句“Given equal opportunities,the twins,having identical brains,would have tested at roughlv the same level.”可知答案为C,即缺乏机会能阻碍智力的发展。
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