机械制造行业技能考试发动机检验工章节练习(2018.11.13)

A.20mg/m²
B.30mg/m²
C.40mg/m²
D.50mg/m²

A.1台/天
B.1台/周
C.1台/月
D.1台/季

A.NY-110
B.90#汽油
C.NY-180
D.NY-190