x,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,k
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x,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,kx,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,kx,y满足条件y-1≥0,x+y-4≤0,y-1≤k
x,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,k
x,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,k
x,y满足条件y-1≥0,x+y-4≤0,y-1≤k(x-1),k∈R,k
开始的时候说k0和y-1
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