A.Fire team B.Rescue team C.Emergency team D.Control team
A.Expanding circle B.Sector search C.Parallel track pattern D.Datum-drift search
A.deck lights forward and aft B.a white light over two red lights C.a red light，white light，and blue light in a vertical line D.a distinctive signal promulgated by the CSS
A.on B.at C.in D.to
A.Bill B.Devil's claw C.Palm D.Crown
