og 136

vin0410

136. Although schistosomiasis is not often fatal, < it is so debilitating that it has become an economic> drain on many developing countries.
(A)        it is so debilitating that it has become an economic
(B)        it is of such debilitation, it has become an economical
(C)        so debilitating is it as to become an economic
(D)        such is its debilitation, it becomes an econom&shy;ical
(E)        there is so much debilitation that it has become an economical

Choice A is best: … C uses an awkward and wordy construction in place of a that... clause.

c是否是it is so debilitating as to become 的倒装
不定式的主语与句子相同, 是否比A简洁

tongxun

C 是it is so debilitating as to become 的倒装。
在表示由什么引起什么的时候，GMAT比较倾向与用so that句式。

tigercat

这题我也有疑问，可是OG中也有用SO AS TO 而不选 SO  THAT 的。
而且SO AS TO 用在句子是单一动此的情况。不知道这里问什么不行了？

vin0410

Indeed, it’s confusing.
有时不定式的行使对象明确用so as to, 有时又用so that
实在是很头痛