A.(x+1)(y+1)=2,z=3 B.(x+1)(y-1)=2,z=3

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问题 A.(x+1)(y+1)=2,z=3B.(x+1)(y-1)=2,z=3C.(x+1)(y-1)=-2,z=3D.(x+1)(y+1)=-2,z=3

选项 A.(x+1)(y+1)=2,z=3
B.(x+1)(y-1)=2,z=3
C.(x+1)(y-1)=-2,z=3
D.(x+1)(y+1)=-2,z=3

答案 B

解析
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