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(文)设A={1,y,lg(xy)},B={0,|x|,y},且A=B,则x=________;y=________.
已知三个元素的集合A={x,xy,x-y},B={0,|x|,y},且A=B,则x+y的值为
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A.2 B.0 C.-2 D.-1