A.1种
B.2种
C.3种
D.4种
[单选题]A.1种B.2种C.3种D.4种
[单选题]A.G(x)在点x=0处不连续。B.C.D.
[单选题]A.11.81%B.11.08%C.10.18%D.10.08%
[单选题]A.B.C.D.
[多选题]A.B.C.D.