The purging of air from an elector-hydraulic steering gear unit is necessary when（） ["changing over to hand pump operation","engaging the trick wheel","the system has been filled with new oil","the rudder angle indicator does not match the helm positio"]
下列不能作为公司发起人出资财产的是哪些？（） ["土地使用权","商标权","专利权","特许经营权"]
The type of carrier required to file a copy of freight tariffs would be the（）. ["common carrier","tramp","public vessel","bulk carrier"]
The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the（）. ["deck","head of the boom","heel of the boom","mast or king post"]
JIT系统中，看板按使用的功能主要分为（）。 ["生产订货看板、取货看板","生产订货看板、取货看板、信号看板","三角看板、取货看板、临时看板","ANDON板、临时看板"]
变电站母线故障后，值班调控员接到现场运维人员检查结果后，应如何处理？
