A.(0.5±0.1)MPaB.(0.5±0.2)MPaC.(0.05±0.01)MPaD.(0.05±0.02)MPa
A.1minB.2minC.3minD.5min
A.弱酸浸泡B.肥皂液C.專(zhuān)用清洗劑D.飲用水