单项选择题
A.0.070%~0.15% 0.20% C.1.23%~2.24% D.0.73%~0.82% E.3.0%
A.<0.15% B.>0.20% C.1.23%~2.24% D.0.73%~0.82% E.3.0%
A.5% B.10% C.15% D.20% E.25%