GMAT语法考试模拟试题训练10

>>GMAT模拟题练习：GMAT语法考试模拟试题训练10

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In 2000, a mere two dozen products accounted for half the increase in spending on prescription drugs, a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing many more prescriptions for higher-cost drugs.

A.a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing

B.a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing

C.a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written

D.which occurred not just because drugs are becoming more expensive but doctors are also writing

E.which occurred not just because of more expensive drugs but because doctors have also written

正确答案：B

GMAT语法题目解析

not just…but also…=not only…but also…后者更加正式和书面语

选项分析

A，is explained .. becaulse冗余，not...but后面不平行

B is the best

C，not...but表达不准确，且后面不平行 而且后面也没有必要用完成时态。

D、E，which指代不清

这种同位语的形式是ETS的优选结构。

Ruby:这里a phenominnon。。。。。是独立主格结构。

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