86. 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 writingmany 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[11]
(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
就是想问问哈，选项CD中的which是不是不对的，因为which在这里修饰的是前面那个drug而非前面整个现象~~~~~~ | 
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发表于 2013-1-18 11:14:12
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