二级消防工程师消防安全案例分析单项选择题每日一练(2019.08.14)

A.2.00h
B.3.00h
C.4.00h
D.5.00h

A.18m×18m
B.15m×15m
C.13m×13m
D.12m×12m

A.1.1m
B.1.2m
C.1.3m
D.1.4m

A.下风
B.上风
C.侧风
D.正风

A.10s
B.30s
C.50s
D.100s