A.对
B.错
[单选题]A.5/6B.1/6C.1/3D.1/5
[单选题]A.5/6B.1/6C.1/3D.1/5
[单选题]A.条件(1)充分,但条件(2)不充分。B.条件(2)充分,但条件(1)不充分。C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起
[单选题]A.条件(1)充分,但条件(2)不充分B.条件(2)充分,但条件(1)不充分C.条件(1)和条件(2)单独都不充分,但条件(1)和条件(2)联合起来充
[单选题]A.增大B.减小C.不变D.先增大后减小E.先减小后增大
[单选题]A.增大B.减小C.不变D.先增大后减小E.先减小后增大
[单选题]A.增大B.减小C.不变D.先增大后减小E.先减小后增大