A.8.4萬(wàn)元 B.28.47萬(wàn)元 C.49.66萬(wàn)元 D.75.31萬(wàn)元
A.1583.3 B.1666.7 C.1543.8 D.1657.9
A.11.6% B.11.3% C.10% D.12%