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A.正确 B.错误 [多选题] 对检索到的录像本地下载,支持( )倍速和高速下载。
A.1倍 B.2倍 C.4倍 D.8倍。 [多选题]变压器的瓦斯保护,在运行中应注意的问题是(____)。
A. 瓦斯继电器接线端子处不应渗油 B. 端子盒应能防止雨、雪和灰尘的侵入的措施 C. 电源及其二次回路要有防水、防油和防冻的措施 D. 要在春秋二季进行防水、防油和防冻检查 [填空题]>钢坯加热过程中生成的氧化铁皮的化学成份从内到外分别为FeO、( )、Fe2O3。
[判断题]利润表中的各项目应根据有关损益类账户的本期发生额或余额分析计算填列。
A.正确 B.错误 [单选题]以下不属于使用劳动防护用品的一般要求是( )。
A.防护用品应定期进行维护保养 B.使用前应首先做一次外观检查 C.劳动用品的使用必须在其性能范围内,不得超极限使用 D.严格按照《使用说明书》正确使用劳动防护用品 [判断题]1175E钻机有2个塔架锁销油缸。
A.正确 B.错误 [单选题]在自动闭塞区段,当列车接近的通过信号机显示容许信号时,机车信号机显示一个( )灯光。
A.半黄半红色闪光 B.红色 C.蓝色 [多项选择]关于树脂的通性描述正确的是()
A. 通常为无定形固体 B. 燃烧时有浓烟或明亮的火焰,并有特殊的香气或臭气 C. 加热容易变软,最后熔融 D. 易溶于乙醇、氯仿等有机溶剂 E. 不溶于水 [简答题]简述顺序控制的分级控制。
[多选题]救援工作的目标和要求:在确保救援作业安全的前提下,最大限度地减少( ),最大限度地减少对铁路运输生产的影响。
A.人员伤亡 B.救援时间 C.财产损失 D.救援人员 我来回答: 提交
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