单项选择题
A.0.1~0.3g/L B.0.2~0.4g/L C.0.4~0.6g/L D.0.6~0.8g/L E.0.8~1.0g/L
A.20℃ B.30℃ C.56℃ D.80℃ E.100℃
A.>0.01 B.>0.05 C.>0.10 D.>0.15 E.>0.20