单项选择题
A.62B.57C.42D.38
A.56B.54C.35D.40
A.4B.3C.16/3D.5
A.23B.24C.18D.20
A.0B.1C.2D.3
A.32B.49C.25D.36
A.14B.15C.16D.17
A.72B.54C.90D.64
A.1123B.1136C.424D.1152
A.64B.36C.25D.16
A.16B.17C.18D.19