A.Ⅰ+Ⅱ+Ⅲ+Ⅳ B.Ⅰ+Ⅱ+Ⅳ+Ⅴ C.Ⅰ+Ⅱ+Ⅲ+Ⅳ D.以上全部
A.40%/25 B.25%/40 C.35%/25 D.45%/25
A.Ⅰ+Ⅱ B.Ⅰ+Ⅲ C.Ⅱ+Ⅲ D.Ⅰ+Ⅱ+Ⅲ
A.Ⅰ+Ⅱ B.Ⅰ+Ⅱ+Ⅲ C.Ⅰ+Ⅱ+Ⅳ D.Ⅰ+Ⅱ+Ⅲ+Ⅳ
A.Ⅰ或Ⅱ B.Ⅰ或Ⅲ C.Ⅱ或Ⅲ D.Ⅰ或Ⅱ或Ⅲ