（x﹣2）0有意义的条件是（）．-七年级数学

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• 6﹣2的值是（）．-七年级数学
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• 若（x+5）0=1，则x的值是[]A．x≠﹣5B．x=﹣5C．x≥﹣5D．x≤﹣5-七年级数学
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• 计算：．-七年级数学
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