【简答题】What are NOT the job contents in sorting and counting luggage on the part of the local guides at the airport?A. Help the tourists of this group bring the baggage to the specified location, and remind ...
【多选题】金属铸造是将熔融的金属注入、压入或吸人铸模的空腔中使之成型的加工方法。铸造作业中存在着火灾及爆炸、灼烫、高温和热辐射等多种危险有害因素。因此,铸造作业应有完善的安全技术措施。下列关于浇注作业的安全措施中,正确的有()。
A.
浇注前检查浇包、升降机构、自锁机构、抬架是否完好
【多选题】物流企业在验收物品的过程中重点验收物品的哪些方面?
【单选题】听力原文: Welcome to Emmerson National Park. I'm Dean and this is Dan and we'll be your guides today on what is sure to be a wonderful experience. We are delighted to be assisting you in experiencing the ...
【单选题】What are especially offered to those visiting with children?
B.
Some adventurous activities.
C.
A special family tour.
【单选题】金属铸造是将熔融的金属注入、压人或吸入铸模的空腔中使之成型的加工方法。铸造作业中存在着多种危险有害因素。下列危险有害因素中,不属于铸造作业危险有害因素的是( )。
【单选题】金属铸造是将熔融的金属注入、压入或吸人铸模的空腔中使之成型的加工方法。铸造作业中存在着火灾、爆炸、灼烫、高温和热辐射等多种危险有害因素。下列铸造作业事故的直接原因中,不属于引起火灾及爆炸的原因是( )。