At the required fire drill conducted aboard a vessel，all persons must report to their stations and demonstrate their ability to perform the duties assigned to them（）.

A.by the toolpusher

B.in the station bill

C.by the person conducting the drill

D.at the previous safety meeting

生殖健康教育的原则是：（）

A、实事求是

B、以人为本

C、传播科学知识、提倡文明生活方式

D、注重宣传方法的针对性

E、开放、创新