單項(xiàng)選擇題Downwind for 1 miles,alter to starboard 90 degrees,go down this course for 1 mile;Then alter 90 degrees to starboard and go down this course for 2 miles;Then alter 90 degrees to starboard and go down this course for 2 miles;Keep adding 1 mile ever time you alter to starboard.This operation is()search pattern

A.Williamson Turn
B.Parallel
C.Sector
D.Expanded


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1.單項(xiàng)選擇題Course directed by the OSC or CSS to be steered at the beginning of a search is().

A.original course
B.initial course
C.final course
D.designated course

2.單項(xiàng)選擇題Changing rescuers while carrying out artificial respiration should be done().

A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten-minute intervals

4.單項(xiàng)選擇題All the traces are()old ones.

A.Clear
B.Evident
C.Obvious
D.Apparently

5.單項(xiàng)選擇題A VESSEL,OTHER THAN A RESCUE UNIT,DESIGNATED TO CO-ORDINATE SURFACE SEARCH AND RESCUE OPERATION WITHIN A SPECIFIED AREA is known as().

A.Salving vessel
B.Co-ordinator surface search
C.MERSAR
D.The vessel being salved