下列碳钢在平衡状态下，韧性最差的材料是（） Q215。 T12。 30钢。 T8。
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）. normal water supply at the water seal is lost。 the temperature of the inert gas being delivered to the cargo tanks is more than 150°F。 the cooling water supply to the scrubbers is lost。 all of the above。
东欧平原和西西伯利亚平原有什么显著差异？
When reentering an engine room that has been flooded with CO2, the investigating team should initially（）. leave the access door partially open。 enter from the lowest level。 enter from the highest level。 attempt to operate machinery。
第四纪冰川对欧洲地形的影响如何？
中心金库须在监控录像下设立封锁完好的专用保管柜营业网点设立抵质押品专用款箱。封包入库时必须随（）入库，不允许随现金款箱入库。
