gwd-4-v39

jglsogi

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

Answer is B; I choose A;

In choice B: not just....but also是个什么用法？？？ not only....but (also)

mary1

just可以解释为merely，only。此处和应该是only。

A，A phenomenon is explained because of more expensive drugs. 意思不完整。A phenomenon is explained by the fact that... . 的意思完整。

himba

A, 也是not just... but ...的用法啊？

具体为什么可以不太懂，但是just与only是相同的表程度的副词。而且not just也很常见。

B. 对称平行。