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题库 / Prep2007E2-SC-19
Some anthropologists regard the early hominids' manner of walking as being less efficient than in modern human beings.
as being less efficient than in
as less efficient than it is in
as less efficient than that of
to be less efficient than that of
to have been less efficient than it is in
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CD 区分：首先要明白是步行方式和步行方式对比
所以没有代指Manner of walking的都不对，ABD( it is 这种也是错误, it作指代的时候，要一并考虑定语，那么就是hominids’ manner，错误)
另一方面，regard as doing/n， 是个常用用法，
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