单项选择题
A.56370 B.63530 C.63984 D.131810
A.15.79和14.10 B.11.67和10.42 C.10.42和9.31 D.8.96和8.00
A.2.00%,8.00% B.2.00%,8.24% C.2.06%,8.00% D.2.06%,8.24%