题目内容
（请给出正确答案）
[单选题]
影响海面能见度的因子除雾外，还有()
A.风、霾、雨、雪和低云等
B.沙尘暴、霾、雨、雪和中云等
C.沙尘暴、霾、雨、雪和高云等
D.沙尘暴、霾、雨、雪和低云等
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质源泉。
A.氮气
B.水汽
C.二氧化碳
D.臭氧
更多“影响海面能见度的因子除雾外，还有（)A.风、霾、雨、雪和低云…”相关的问题
第2题
The engine______smoke and steam．A.gives upB.gives awayC.gives inD.gives off
The engine______smoke and steam．
A.gives up
B.gives away
C.gives in
D.gives off
第3题
The common way to obtain your ship’s position is ______.A.keeping a close watch and lookou
The common way to obtain your ship’s position is ______.
A.keeping a close watch and lookout
B.taking a radar range and bearing
C.observing a radar target and listening to signals
D.keeping a well clear caution
第4题
The disinfection of various compartments in a vessel by filling them with a gaseous agent
to destroy rats etc. means______．
A.Quarantine
B.fire drills
C.washing and cleaning
D.fumigation
第5题
The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____
.
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
第6题
The Emergency Position Indicating Radiobeacon on a cargo vessel must be stowed ______.A.in
The Emergency Position Indicating Radiobeacon on a cargo vessel must be stowed ______.
A.in an inside passageway
B.in an approved bracket
C.so that it is accessible from the bridge of the vessel
D.so that it will float free if the vessel sinks
第7题
The electrical components for each single crane are installed in its ______.A.crane houseB
The electrical components for each single crane are installed in its ______.
A.crane house
B.machinery base
C.turntable
D.All of the above
第8题
The compass error of a magnetic compass that has no deviation is ______.A.zeroB.equal to v
The compass error of a magnetic compass that has no deviation is ______.
A.zero
B.equal to variation
C.eliminated by adjusting the compass
D.constant at any geographical location
第9题
The dumping of refuse in a lock is permitted ______.A.when approved by the lockmasterB.she
The dumping of refuse in a lock is permitted ______.
A.when approved by the lockmaster
B.shen locking downbound
C.at no time
D.during high water only
第10题
The distance between the surface of the water and the tidal datum is the______．A.height of
The distance between the surface of the water and the tidal datum is the______．
A.height of tide
B.charted depth
C.actual water depth
D.range of tide
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