已知实数x,y满足 2x+y-2>=0,x-2y+k>=0,x-1
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已知实数x,y满足 2x+y-2>=0,x-2y+k>=0,x-1
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已知实数x,y满足 2x+y-2>=0,x-2y+k>=0,x-1
不必作图 通过联立方程即可得结果 答案为4
这是高三的经验
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