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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.
(B) appear to have been equipped to face any obstacle the environment could put in their path,
(D) appeared as equipped to face any obstacle the environment could put in their paths,
两个疑问: 1、appear为什么不用过去时?既然是已经消失的,那么之前他们所显示的一些特点应该用过去时啊 2、equipe为什么要用现在完成被动时,而不是被动时?
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