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3)倍数＋名词
??The sun is many times the size of the moon.
4)动词＋倍数
??The pants have shortened two times since they were bought.
5)动词+by+数词/百分比/倍数
??The landlord wanted to raise the rent by a third.
??Between 1974 and 1997, the number of overseas visitors expanded
??( )27%. (CET-4 2000,1)
??A) by
??B) for
??C) to
??D) in
??本题考查动词+百分比的表达方法，正确的连接词为by，故答案为A.
