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Most people hold the belief that such an occasion does exist_______ a small error will lead to a disastrous consequence.A.as ...D.when选D，为什么...全文
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Teacherhei：根据句子意思本身表示的是存在这种时候，所以用when(2010-03-29 18:53)
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Teacherhei：〈一〉关系代词 1. that：指“人”或“物”,在定语从句中作主语、宾语、表语； He is the first person that wrote about China. The package that I posted yesterday w...(2010-03-29 18:53)
