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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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as要么做连词，表示像……一样；当……时；因为；要么做介词，表示作为，是；as/as的第一个as是副词，第二个是连词
regard/as的as做介词，接名词或形容词：regard A as B或regard A as adj。
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