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Simon failed the exam again. Because computer games ________ too much of his time.
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If most winners __________ (捐献) a day's pay to the Hope Project, then it will be hopeful.
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在同一环境中对温度计进行了如下操作,温度计的示数下降最快的是:
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7x的4次方乘x的5次方乘(-x)的7次方+5(x的四次方)的四次方-(x的8次方)²
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