A.翻动A和4
B.翻动A和7
C.翻动A和B
D.翻动B和7
E.翻动B和4
[单选题]A.160B.140C.120D.100E.80
[单选题]A.翻动A和4B.翻动A和7C.翻动A和BD.翻动B和7E.翻动B和4
[单选题]A.B.C.D.