正确答案: B
速闭装置
题目:按要求船舶的通风设备,必须装有()。
解析:B
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举一反三的答案和解析:
[单选题]货船海水泵及自动警报和探火系统应有不少于______动力供应源。
2套
[单选题]According to this passage, if the cylinder non-return valve were not leaky
there still would be a danger of explosion
[单选题]驶近渔区时,船舶应做好的避碰戒备包括( )。Ⅰ.了解渔区周围情况,掌握水域的水文资料,观察渔区内渔船的范围和分布情况,避免驶入渔船密集的地方;
Ⅰ~Ⅳ
[单选题]根据追越条款,下列说法何者正确:
如后船对本船是否在追越前船有任何怀疑,不论是否存在碰撞危险,均应假定在追越
[单选题]自由降落下水的救生艇存放在()
船尾支架上
[单选题]The officer in charge of the engineering watch shall notify the chief engineer without delay ____.
in any emergency or if in any doubt as to what decision or measures to take