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Never before______ so many people applied such abstract mathematics to so great a variety of problems.
Never before______ so many people applied such abstract mathematics to so great a variety of problems.
admin
2014-09-24
31
问题
Never before______ so many people applied such abstract mathematics to so great a variety of problems.
选项
A、have
B、had
C、has
D、have had
答案
A
解析
本题综合考查倒装句、时态和主谓一致,never放句首要求主谓倒装,never before是现在时的时间状语,so many people是句子的主语,所以谓语用have。题意为,从前从没有这么多的人把如此抽象的数学应用于这么多种问题当中。
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