In order to judge a child’ s intelligence, his marks in a test must be compared with marks gained by The I.Q. equals to ______.

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问题 In order to judge a child’ s intelligence, his marks in a test must be compared with marks gained by
The I.Q. equals to ______.

选项 A、the mental age multiplied by the chronological age and multiplied by a hundred
B、the chronological age divided by mental age and divided by a hundred
C、the mental age divided by the chronological age and multiplied by a hundred
D、the chronological age multiplied by the chronological age and multiplied by a hundred

答案C

解析 最后一段第二句说IQ就等于智力比率乘以100。第四段第四句话指出智力比率就等于智力年龄和实际年龄的比。
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