单项选择题
A.105,83,71 B.104,77,63 C.105,83,63 D.104,83,73
A.0.08 B.0.09 C.0.10 D.0.12
A.0.08,0.35 B.0.12,0.40 C.0.50,0.40 D.0.50,0.45