[求助]

faireli

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

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

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

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

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

the answer is B. 有not just ….. but also 的用法么？

rt316

not just ... but also的用法是可以的，相当于not only ... but also；在口语中not just比not only更为常用。

另：请faireli在以后的帖子中将题号表达清楚，以便查询或整理，谢谢！

faireli

不好意思，这是朋友传给我的题，没有什么题号，抱歉了。