________acertaindoub的知识精选

________acertaindoubtamongtheworkersastothenecessityoft...
问题详情:________acertaindoubtamongtheworkersastothenecessityofthework.A.Thereexisted B.ItexistedC.Therehad D.Ithad【回答】A此处Thereexistedacertaindoubt=Therewasacertaindoubt,是Therebe结构的变式。知识点:固...
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