A.FEV/FVC<70%,RV/TLC>40%
B.FEV/FVC<60%,RV/TLC<25%
C.FEV/FVC>75%,RV/TLC<25%
D.FEV/FVC<60%.RV/TLC>40%,FEV占预计值的90%
E.FEV/FVC>75%,RV/TLC>40%