单项选择题
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
单项选择题 Course directed by the OSC or CSS to be steered at the beginning of a search is（）.
单项选择题 The commander of a rescue unit designated to co-ordinate search and rescue operations within a specified area is the（）.
单项选择题 Stop search and return to（）.
