为曾出土先有节,及至凌云仍虚心

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• 王大妈与张大妈相约一起去买米,第一次大米的单价是每千克2.50元,第二次的单价是每千克3.00元,王大妈每次都买20千克

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• The heavy rain __ ,the children went outside to play. A. had

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• The man won't pass unless he takes the test.

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• 请问Fe+?=CuFe如何变成Cu？

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• 函数y＝1/ √2x-1中自变量x的取值范围是________．

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• What are these? They are ______________.

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