【单选题】
关于safety&healthy说法正确的是()
A、在本地安全中心
B、NSN内部外部区分
C、NSN内部外部相同
A、在本地安全中心
B、NSN内部外部区分
C、NSN内部外部相同
A、information(W)safety B、information(N)safety C、information AND safety D、information OR safety
A、distress, urgent and safety B、safety and routine C、urgent, safety and routine D、distress, urgent, safety and routine
A、My ship has been maintained B、My ship has been painted C、All my crew members have been vaccinated D、All my crew members have no quarantinable diseases