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单选题
难度系数:

1.已知满足,且的最大值是最小值的倍,则的值是(  )
A:
B:
C:
D:
  • 提示1IOmimOS4reaJgOe7mee6puadn+adoeS7tuaJgOW+l+eahOWPr+ihjOWfn+WmguS4i+Wbvu+8mjxicj4NCjxpbWcgd2lkdGg9MjM1IGhlaWdodD0yMDEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yQi9EOC9yQkFDRTFOZ29BYmhYdW9SQUFBVXgxQXN0LWswNS5qcGVnIj48YnI+DQo8YnI+DQo=
  • 提示2IDxpbWcgd2lkdGg9NjkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRUYvQ0QvckJBQ0ZGTmdvQWFBQU13bUFBQUNXVkFOSHFnMzY3LnBuZyI+5Zyo54K5PGltZyB3aWR0aD0zMiBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yQi9EOC9yQkFDRTFOZ29BYno5eG9UQUFBQnVzMEZGUFk5NjMucG5nIj7lkow8aW1nIHdpZHRoPTQ1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJCL0Q4L3JCQUNFMU5nb0FheXBDdmZBQUFDSVcxdnQ5dzE2MC5wbmciPuWkhOWIhuWIq+WPluacgOWkp+WAvOWSjOacgOWwj+WAvA==
  • 提示3IOacgOWkp+WAvOaYrzPvvIzmnIDlsI/lgLzmmK8zbSzmiYDku6U8aW1nIHdpZHRoPTY5IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0VGL0NEL3JCQUNGRk5nb0FiQWlIcE1BQUFCendmd3ZTazUyOC5wbmciPizmiYDku6U8aW1nIHdpZHRoPTQyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0VGL0NEL3JCQUNGRk5nb0FheHZXaDFBQUFDSC0wY05tUTMyNi5wbmciPg==