A、僅僅是Ⅱ B、僅僅是Ⅳ C、Ⅰ或Ⅲ D、僅僅是Ⅰ
A.Ⅰ+Ⅱ+Ⅲ+V B.Ⅰ+Ⅱ+Ⅳ+V C.Ⅰ+Ⅲ+Ⅳ+V D.Ⅰ+Ⅱ+Ⅲ+Ⅳ+V
A、3.0%/1.5% B、3.5%/1.5% C、3.0%/0.5% D、3.5%/0.5%