If you see someone fall overboard from a vessel，you should（）.

A.immediately jump in the water to help the individual

B.call for help and keep the individual in sight

C.run to the radio room to send an emergency message

D.go to the control room for the distress flares

悬挂在提升机房内的提升装置管理资料（）。

A.制动系统图

B.电气系统图

C.提升装置的技术特征

D.岗位责任制等

E.提升机总装配图