A.20
B.40/3
C.38/3
D.14
E.12
[单选题]A.20B.40/3C.38/3D.14E.12
[单选题]A.甲、乙组合B.乙、丙组合C.甲、丙组合D.甲、乙、丙组合
[单选题]A.甲、乙组合B.乙、丙组合C.甲、丙组合D.甲、乙、丙组合
[单选题]A.106.7B.169.5C.207.3D.216.2
[单选题]A.106.7B.169.5C.207.3D.216.2
[单选题]A.106.7B.169.5C.207.3D.216.2
[单选题]A.B.C.D.E.A、B、C、D都不正确
[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