Unlike most warbler species, the male and female blue-winged warbler are very difficult to tell apart.
(A) Unlike most warbler species, the male and female blue-winged warbler are very difficult to tell apart.
(B) Unlike most warbler species, the gender of the blue-winged warbler is very difficult to distinguish.
(C) Unlike those in most warbler species, the male and female blue-winged warblers are very difficult to distinguish.
(D) It is very difficult, unlike in most warbler species, to tell the male and female blue-winged warbler apart。
(E) Blue-winged warblers are unlike most species of warbler in that it is very difficult to tell the male and female apart.
这题给出答案是E，但我认为应该是C。原因有二。
一是E的逻辑似乎是“绿翅膀这种鸟不像其他同种类的鸟是在于非常难以区分雌雄”，这种逻辑关系非常怪异。按照GMAT的正常思路，unlike most species...提到句首，形成一种对照关系，似乎更合理些。
二是，在GMAT里，似乎in that不受待见。比如，OG11版SC-51题，就认为“IN THAT is stilted and overly formal". 后来答案选的是for引导的准状语从句。
当然，C中，有人说those指代不清，好象是有点问题。不过，从感觉上看，C比E更像正确答案。
the answer is e.
'those' cannot subsitute 'the male and female'; the only plural noun in the main clause is 'warblers'. obviously, 'warblers in most warbler species' is illogical.
agree
!
Why A is not correct?
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