A.3%,3‰,1.5% B.1.5%,1.5‰,3% C.1%,1‰,1.5% D.3‰,3%,1.5% E.3‰,3%,1%
A.五 B.四 C.三 D.二 E.一
A.500 B.1000 C.1500 D.2000 E.2500