A.f′(x)
B.f′(0)
C.f(0)
D.1/2f(0)
[单选题]A.f′(x)B.f′(0)C.f(0)D.1/2f(0)
[单选题]A.f′(x)B.f′(0)C.f(0)D.1/2f(0)
[单选题]A.f′(x)B.f′(0)C.f(0)D.1/2f(0)
[单选题]A.f′(x)B.f′(0)C.f(0)D.1/2f(0)
[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.a+bB.a-bC.b-aD.-a-bE.ab
[单选题]A.aB.a-lC.bD.b-l
[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.a+bB.a-bC.b-aD.-a-bE.ab
[单选题]A.aB.a-lC.bD.b-l