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【题目】Mistakes are ________ sometimes. We learn a lot from them. (value)

【答案】valuable

【解析】

句意:错误有时是宝贵的。我们可以从中学到很多。

value名词,翻译为“价值”。分析句子可知,此处用于句中作表语,翻译为“宝贵的”,所以用其形容词形式。故填valuable

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