单项选择题
A.1.5 and greater B.1.25 and greater C.1.0 and greater D.0.5 and greater
The expression DROP ANCHOR means（）.A.hold anchorB.leave...
单项选择题The expression DROP ANCHOR means（）.
A.hold anchor B.leave anchor C.let go anchor D.weigh anchor
The best method to stop a vessel from dragging anchor i...
单项选择题The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
A.reduce the length of the cable B.pay out more anchor cable C.back the engines D.swing the rudder several times to work the anchor into the bottom
PAN-PAN repeated three times over the radiotelephone in...
单项选择题PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）
A.Distress B.Safety C.All clear D.Urgency
