Sufficient,but not less than two complete sets of safety equipment in addition to the firemen'soutfits,each permitting personnel to enter and work in a______space, should be provided.
A.gas-filled
B.water-filled
C.gasfire
D.open
正确答案是A
Sufficient,but not less than two complete sets of safety equipment in addition to the firemen'soutfits,each permitting personnel to enter and work in a______space, should be provided.
A.gas-filled
B.water-filled
C.gasfire
D.open
正确答案是A