单项选择题
A.fastness B.speeding C.swiftness D.dispatch
The major components which determine the length of a ca...
单项选择题The major components which determine the length of a catenary in a deployed anchor cable are water depth，cable weight，and（）.
A.cable tension B.water temperature C.bottom conditions D.water density
The litter on a ship must be able to（）.A.carry at least...
单项选择题The litter on a ship must be able to（）.
A.carry at least two injured persons B.float for at least two hours C.be used on the types of helicopters serving the unit D.All of the above
The lifesaving signal indicating You are seen - assista...
单项选择题The lifesaving signal indicating You are seen - assistance will be given as soon as possible is the（）.
A.vertical motion of white flags B.vertical motion of a white light or flare C.firing of a green star signal D.None of the above
