83. 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
OG里面说B是正确的。C中drugs that are becoming more expensive 是得，为什么B a phenomenon that is explained 就对了，那个THAT 不能省略么。我看到很多THAT后面有BE动词的都是awkward，求大牛解释、作者: sherilynchi 时间: 2013-2-20 21:10
我也刚好在看这题诶，不是OG里经常说not only but also 要连用的吗？
B选项里只有not just but also 也可以吗？作者: ashleyyuan 时间: 2013-2-21 07:19
(A) a phenomenon that is explained not just because
of more expensive drugs but by the fact that
doctors are writing
看原句的意思，作为同位语解释一个phenomenon..that引导定语从句修饰phenomenon
A错在not....but..不平行
正确选项B that不省略的原因是 它和原句要表达的意思一致，即that引导定语从句。。
(C) a phenomenon occurring not just because of
drugs that are becoming more expensive but
because of doctors having also written
C我觉得有2个错误。a phenomenon occurring..一直在发生的现象？原句没这个意思
sb having done这个典型的错误形式。。
总之要看原句的意思。。。作者: JessicaHuo 时间: 2013-2-25 06:40
也在看这个题 不懂啊· 为什么D不对
(D) which occurred not just because drugs are becoming more expensive but doctors are also writing
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