
A.
B.
C.
D.
[单选题]A.a<-1B.-1≤a<0C.0≤a<1D.a≥1
[单选题]A.a<-1B.-1≤a<0C.0≤a<1D.a≥1
[单选题]( )A.9B.17C.24D.29
[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
[单选题]A.I<J<KB.J<K<IC.K<J<ID.I<K<J
[单选题]A.2a+3b=4B.3a+2b=4C.a+b=lD.a+b=2
[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