m+n=637,则实数对(m,n)表示平面上不同点?若m,n属于{x|x=a2*10^2+a1*10+a0})其中ai(i=0,1,2)属于{1,2,3,4,5,6,7},并且m+n=637,则实数对(m,n)表示平面上不同点的个数为( )A.32个 B.30个 C.62个 D.60个请高手指教
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![m+n=637,则实数对(m,n)表示平面上不同点?若m,n属于{x|x=a2*10^2+a1*10+a0})其中ai(i=0,1,2)属于{1,2,3,4,5,6,7},并且m+n=637,则实数对(m,n)表示平面上不同点的个数为( )A.32个 B.30个 C.62个 D.60个请高手指教](/uploads/image/z/9637397-53-7.jpg?t=m%2Bn%3D637%2C%E5%88%99%E5%AE%9E%E6%95%B0%E5%AF%B9%28m%2Cn%29%E8%A1%A8%E7%A4%BA%E5%B9%B3%E9%9D%A2%E4%B8%8A%E4%B8%8D%E5%90%8C%E7%82%B9%3F%E8%8B%A5m%2Cn%E5%B1%9E%E4%BA%8E%7Bx%7Cx%3Da2%2A10%5E2%2Ba1%2A10%2Ba0%7D%EF%BC%89%E5%85%B6%E4%B8%ADai%28i%3D0%2C1%2C2%29%E5%B1%9E%E4%BA%8E%7B1%2C2%2C3%2C4%2C5%2C6%2C7%7D%2C%E5%B9%B6%E4%B8%94m%2Bn%3D637%2C%E5%88%99%E5%AE%9E%E6%95%B0%E5%AF%B9%EF%BC%88m%2Cn%EF%BC%89%E8%A1%A8%E7%A4%BA%E5%B9%B3%E9%9D%A2%E4%B8%8A%E4%B8%8D%E5%90%8C%E7%82%B9%E7%9A%84%E4%B8%AA%E6%95%B0%E4%B8%BA%EF%BC%88+%EF%BC%89A.32%E4%B8%AA+B.30%E4%B8%AA+C.62%E4%B8%AA+D.60%E4%B8%AA%E8%AF%B7%E9%AB%98%E6%89%8B%E6%8C%87%E6%95%99)
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