167.(Neanderthals had a vocal tract that resembled those of the apes) and so were probably without language, a shortcoming that may explain why they were supplanted by our own species. (A) Neanderthals had a vocal tract that resembled those of the apes (B) Neanderthals had a vocal tract resembling an ape’s (C) The vocal tracts of Neanderthals resembled an ape’s (D) The Neanderthal’s vocal tracts resembled the apes’ (E) The vocal tracts of the Neanderthals resembled those of the apes 答案:B B中的Neanderthals 与an ape是否比较对等呢?名词的复数形式表示一类中的每一个,an加单数名词是泛指一类,它们这样可以这样对等吗?