vi.len 发表于 2016-8-8 18:22
are social 和(are)speperable是平行的,是没有问题的。
D选项为:Recent interdisciplinary studies adv ...
but 并列连词,open modifier可以省略are,
既然 are social phenomena but (are) not separable可以平行,那为什么D不对呢
OG给的D解释大致是:
1. Dash 成对出现;
2. the phrase "not separable "is awkward; it would be better as "are not separable" or "are inseparable"
这里不省"are"反而变成better了