A.Ⅰ+Ⅲ+Ⅳ B.Ⅰ+Ⅱ+Ⅴ C.Ⅱ+Ⅳ D.Ⅰ+Ⅱ
A.Ⅰ+Ⅲ+Ⅳ+Ⅴ B.Ⅰ+Ⅱ+Ⅴ C.Ⅰ+Ⅱ+Ⅲ+Ⅳ D.Ⅰ+Ⅱ+Ⅲ
A.0.1~0.3 B.0.05~0.1 C.0.01~0.03 D.0.005~0.01