计算：(3-2)0+(-2)-1+2•sin60°．-数学

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• 计算：8+13-2-(13)-1÷3+(1-2)2．-数学
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• 计算：（-2）0+8+12+1．-数学
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• 计算：9-2×2-1-|-3|+20130．-数学
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• 下列计算，正确的是（）A．5a-2a=3B．（-2x2）3=-6x6C．0.1-1=10D．（a+b）（a-2b）=a2-2b2-数学
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