单项选择题

A.回收率(%)=22.50/15.00×100%=150.0%
B.回收率(%)=12.50/10.00×100%=125.0%
C.回收率(%)=(22.50-10.0)/12.50×100%=100.0%
D.回收率(%)=10.00/12.50×100%=80.0%
E.回收率(%)=(22.50-15.00)/12.50*100%=60.0%