The commander of a rescue unit designated to co-ordinate search and rescue operations within a specified area is the（）.<br>A:General commander<br>B:Commander general<br>C:Search commander<br>D:On-scene commander

The commander of a rescue unit designated to co-ordinate search and rescue operations within a specified area is the（）.
A:General commander
B:Commander general
C:Search commander
D:On-scene commander

出自：海船船员证

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