A.0.4%~0.8% B.1%~1.4% C.2%~2.4% D.3%以上
A.小于3% B.3%~5% C.5%~10% D.10%以上
A.0.14%~0.164% B.1.4%~1.64% C.14%~16.4% D.無(wú)法判斷