单项选择题
A.Cooling ability B.Leaves no residue C.Penetrating power D.Nonconductivity
Antares is found in what constellation?（）A.ScorpioB.Cor...
单项选择题Antares is found in what constellation?（）
A.Scorpio B.Corvus C.Libra D.Corona Borealis
An undocumented vessel with 10 people aboard and operat...
单项选择题An undocumented vessel with 10 people aboard and operating 25 miles off the seacoast must carry a survival craft of the（）.
A.inflatable buoyant apparatus type B.buoyant apparatus type C.life float type D.Any of the above types are acceptable
An overtaking situation at night would be one in which ...
单项选择题An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?（）
A.Masthead lights and sidelights B.One sidelight，the masthead lights and stern light C.Both sidelights D.Stern light
