A.空气呼吸器
B.压力气瓶
C.防毒面具
D.压缩空气
第2题
A.canister-type gas mask
B.fresh-air breathing apparatus
C.self-contained breathing apparatus
D.combustible gas indicator
第3题
A.canister-type(滤毒罐型) gas mask
B.fresh-air breathing apparatus
C.self-contained breathing apparatus
D.combustible gas indicator
第4题
A.face shield
B.a respirator
C.rubber gloves
D.an all purpose gas mask
第5题
A.Portable ventilation system
B.Flame safety lamp
C.Self-contained breathing apparatus.
D.Gas mask
第6题
A.canister-type gas mask
B.fresh-air breathing apparatus
C.self-contained breathing apparatus
D.combustible gas indicator
第7题
A.dishwashers are very efficient machines
B.tap water is as polluted, as bottled water
C.indoor pollution rivals outdoor pollution
D.gas mask is a useful protective device
第8题
A.face shield
B.a respirator
C.rubber gloves
D.an all purpose gas mask
第9题
A.a gas mask suitable for protection against each refrigerant used, or a self contained breathing apparatus must be provided
B.it is the sole responsibility of the chief engineer to ascertain that all members of the engineering department are familiar with the use of gas masks or breathing apparatus
C.spare charges shall be carried for at least 50% of each size and variety of gas masks and/or self contained breathing apparatus
D.all of the above
第10题
A.① only
B.Either ① or ②
C.② only
D.Neither ① nor ②
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