挑战习题
1/3单选题
难度:

1.不等式的解集为(    )
A
B
C
D
提示1:
IDxpbWcgd2lkdGg9MzM2IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzJDLzREL3JCQUNFMU5neEpteGRlT2NBQUFIVC0yOUtjNDc4Mi5wbmciPg==
正确答案:QQ==
6Kej77yaPGltZyB3aWR0aD0zMzYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkMvNEQvckJBQ0UxTmd4Sm14ZGVPY0FBQUhULTI5S2M0NzgyLnBuZyI+PGJyPuazqOaEj++8mui/meS4qumimOebruW6lOivpeWFiOWPmOW9ou+8gQ==