筑炉工中级筑炉工单项选择题每日一练(2019.05.07)

A.1250
B.1350
C.1450
D.1550

A.8
B.16
C.24
D.30

A.-4
B.0
C.+5
D.+10

A.80%
B.85%
C.89%
D.93%

A.2~3
B.3~4
C.4~5
D.5~6