A.回收率(%)= 22. 50/15. 00×1000/0= 150. 0%
B.回收率(%)= 12. 50/10. 00×100%=125.0%
C.回收率(%)=(22.50 - 10.0)/12. 50 x100% =100. 0%
D.回收率(%)= 10. 0/12. 50×100%=80.0%
E.回收率(%)=(22.50 - 15.00)/12. 50 x100%= 60. 0%