As it is mentioned in the 4th paragraph gaps have
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As it is mentioned in the 4th paragraph,gaps have grown dramatically between________.
A.the talented students and the slow ones
B.the advanced countries and the others
C.the selective institutions and the rest
D.the rich families and the poor ones
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答案：C
本题是细节考查题。题干是：根据第四段所提及的内容，哪两者之间的差距已经变得很大？选C的依据是第四段第三句："Gaps between rich and poor have grown even more dramatically than gaps in entering test scores.”名校和一般学校之间的贫富差距已经比投档分数线的差距更加巨大。选项C的意思是精英学校和一般学校之间的差距，与原文相符。