洗滌工初級(jí)單項(xiàng)選擇題每日一練(2019.01.14)

A.粗苯洗萘
B.焦油堿洗
C.精苯酸洗

A.越小
B.越大
C.無(wú)關(guān)

A.1.0%
B.2.0%
C.1.5%

A.10-20
B.20-30
C.30-40

A.70-80
B.60-70
C.50-60