Combining enormous physical strength with higher intelligence, the Neanderthals appear as equipped for facing any obstacle the environment could put in their path, but their relatively sudden disappearance during the Paleolithic era indicates that an inability to adapt to some environmental change led to their extinction,
(A)appear as equipped for facing any obstacle the environment couid put in their path,
(B)appear to have been equipped to face any obstacle the environment could put in their path
(C)appear as equipped to face any obstacle the environment could put in their paths,
(D)appeared as equipped to face any obstacle the environment could put in their paths,
(E)appeared to have been equipped for facing any obstacle the environment could put in their path
题目分析：根据划线内外存在but引导的并列关系我们知道appear应该和后面的indicates形成对应关系，那就不应该用appeared，干掉D和E。而A和C appear后面用as但是B后面用to have been equipped，equipped语义上是被动，as后面没有be动词不合适，只有B了。
