If you see someone fall overboard from a ship,you should(). immediately jump in the water to help the individual。 call for help and keep the individual in sight。 run to the radio room to send an emergency message。 go to the control room for the distress flare。
混凝土拆模后可能与流动水接触,有何规定?
山西留日学生()为争矿权,唤起民众,掀起了一场山西人民争矿运动。 A.南桂馨。 B.李培仁。 C.王梦龄。 D.岑春煊。
If an emergency pump control is used as the emergency shutdown on a tank vessel,it must(). stop the flow of oil at the main deck manifold。 prevent the oil from leaving the shore facility。 prevent the oil from siphoning through the pump。 None of the above。
混凝土养护期间对温差有何要求?
对于Windows Server 2003的终端服务,下列描述正确的是()。