A.10% B.15% C.20% D.23%
A.0.1元 B.0.2元 C.0.3元 D.0.4元
A.11.2% B.12.3% C.13.3% D.14.3%
A.1.2:5.6 B.1.6:7.5 C.1.2:7.5 D.1.6:5.6