单项选择题
A.16.0 B.18.1 C.18.45 D.16.4
A.Ⅰ,Ⅱ,Ⅲ B.Ⅱ,Ⅲ C.Ⅱ,Ⅳ D.Ⅲ,Ⅳ,Ⅴ
A.19092.7 B.19414.7 C.13202.4 D.条件不足,无法计算