单项选择题
A.top or upstream beginning of a bend B.bottom or downstream beginning of a bend C.midpoint or center radius of a bend D.center line or apex of a bend
The firing of a red star signal may mean（）.A.This is th...
单项选择题The firing of a red star signal may mean（）.
A.This is the best place to land B.You are seen - assistance will be given as soon as possible C.Tail block is made fast D.Slack away
The Coordinator Surface Search in a SAR situation shoul...
单项选择题The Coordinator Surface Search in a SAR situation should display by day（）.
A.the code flags FR B.a black ball over a black diamond shape C.code flag Quebec over a black ball D.two black diamond shapes in a vertical line
Some sea water came into the wheel house during the voy...
单项选择题Some sea water came into the wheel house during the voyage due to（）the window thereof.
A.not close B.not closing C.we didn't close D.not to be closed
