挑战习题
1/5单选题
难度:

1.已知变量x,y满足的值范围是()
A
B
C
D
提示1:
IOeUu+WHuue6puadn+adoeS7tuaJgOihqOekuueahOW5s+mdouWMuuWfn+WPr+efpe+8jOivpeWMuuWfn+aYr+eUseeCuTxpbWcgd2lkdGg9MTQxIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzQyLzYwL3JCQUNKMVRRSjZMelRNb3RBQUFEbkFNV0NTSTA0My5wbmciPuaJgOWbtOaIkOeahOS4ieinkuW9ouWMuuWfn++8iOWMheaLrOi+ueeVjO+8ieOAgg==
提示2:
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
提示3:
IOaxguWHuuaWnOeOh+eahOWPluWAvOiMg+WbtOOAgg==
正确答案:QQ==
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