A.has long life
B.is light weight
C.absorbs shock
D.has fine adjustment
您可能感興趣的試卷
你可能感興趣的試題
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
A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
A.Cirrus
B.Cumulus
C.Stratus
D.Nimbus
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
A.satellite communications
B.navigational information
C.weather information
D.position reporting service
最新試題
An example of a grade B product is（）.
All of the following information concerning lighted aids to navigation may be read directly from the Light List EXCEPT the（）.
AMVER is a system which provides（）.
An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.
An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.
All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.
An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.
An all-round flashing yellow light may be exhibited by a(n)（）.
Explosive and flammable gasses are most likely to be encountered on a vessel（）.