单项选择题
A.1%-5% B.5%~10% C.12%-20% D.25%~30% E.33%一35%
A.28 B.32 C.40 D.45 E.50
A.12.59 B.13.85 C.12.13~12.55 D.17.99~28.87 E.23.85~28.8