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
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1题
A.zero
B.equal to variation
C.eliminated by adjusting the compass
D.constant at any geographical location
第2题
A.crane house
B.machinery base
C.turntable
D.All of the above
第3题
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4题
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
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