A.located in an air-conditioned area
B.mounted in the passenger compartment
C.protected by a collision bulkhead
D.permanently mounted
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A.Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights
B.Three lights in a vertical line，the highest and lowest red and the middle white，ONLY
C.Anchor lights ONLY
D.Anchor lights and sidelights ONLY
A.vessel laying cable
B.vessel towing a submerged object
C.vessel not under command
D.air cushion vessel
A.Opening and closing the throttle
B.Rocking the wings
C.Flashing the navigational lights off and on
D.Flashing Morse T
A.has long life
B.is light weight
C.absorbs shock
D.has fine adjustment
A.increase the towing hawser's catenary and provide more spring
B.reduce catenary，allow operation in shallower water，and to release one barge without breaking up the entire tow
C.enable one tug and its crew without any outside assistance to make up or break down the tow
D.provide rapid delivery of logs from the northwestern United States to Hawaiian sawmills
最新試題
All portable fire extinguishers must be capable of being（）.
An icebreaker may use the code letter “K” to remind ships of their obligation to listen continuously on their radio. This signal may be made by any of the following EXCEPT（）.
Air circulation is caused or affected by（）.
An azimuth angle for a body is measured from the（）.
In respect of carrier’s liabilities，responsibilities，rights and immunities the（）contained in the International Convention for the Unification of Certain Rules Relating to Bills of Lading，signed at Brussels on August 25，1924，shall be applied.
An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.
Explosive and flammable gasses are most likely to be encountered on a vessel（）.
An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.
In handling break bulk hazardous materials，it is forbidden to use（）.
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.