The railroad industry could not have
grown as large as it did without steel. The first rails were made of iron. But
iron rails were not strong enough to support heavy trains running at high
speeds. Railroad executives wanted to replace them with steel rails because
steel was ten or fifteen times stronger and lasted twenty times longer. Before
the 1870’s, however, steel was too expensive to be widely used. It was made by a
slow and expensive process of heating, stirring, and reheating iron
ore. Then the inventor Henry Bessemer discovered that directing a blast of air at melted iron in a furnace would burn out the impurities that made the iron brittle (易碎的). As the air shot through the furnace, the bubbling metal would erupt in showers of sparks. When the fire cooled, the metal had been changed, or converted, to steel. The A. cheaper and more plentiful B. lighter, and easier to mold C. cleaner, and easier to mine D. stronger and more durable [判断题]操作结束,按照操作票的操作任务和操作项目,操作完毕立即向调度回复操作指令执行完毕
A.正确 B.错误 [单选题]下列不属于按诊主要手法的是
A.敲 B.摸 C.按 D.叩 E.触 [简答题]某公司采用从网上下载心理测评工具,让部门经理自学心理学,对应聘者进行投射测试,并根据自己的感觉打分,分值低的将不能进入下一轮。为了招聘环节公开公平,所有结果将会公布。
请问该公司此类操作出现了哪些问题,应该怎么处理?(15 分)
[多选题]加强党的政治建设,必须高举中国特色社会主义伟大旗帜,坚持( ),提高政治能力。
A. 党的政治领导 B. 夯实政治根基 C. 涵养政治生态 D. 防范政治风险 E.永葆政治本色 [单选题]EPON中动态带宽分配采用( )控制方式
A.分散 B.集中 C.逐个 D.混合 [单项选择]保障基金的使用遵循保障投资者合法权益和公平救助原则,实行()。
A. 比例补偿 B. 全额补偿 C. 部分补偿 D. 申请补偿 [简答题]胸部触诊
[单选题]天气预报所说的“风力等级”是通过( )来定义的,不能直接作为塔式起重机特定位置的实际风载荷考量标准。
A.平均风速 B.瞬时风速 C.天气预报风速 D.最大风速 [多选题] 甲因与妻子感情不和, 已经分居半年, 正在闹离婚。 一 日, 甲暴 病身亡, 未留遗嘱。 甲留有遗产10万元, 甲的下列亲属中有权继 承该10万元遗产的是()。
A.其子乙 B.其父丙 C.其妻丁 D.其弟戊 [判断题]烟草专卖批发企业许可证,必须经国务院烟草专卖行政主管部门批准发放。( )
A.正确 B.错误 [简答题]保护隐私,是指涉外人员在对外交往中应尽力不传播、不泄露隐私问题,请你结合实际谈一谈如何做到这一点?
[单选题]电缆耐压试验分相进行时,另两相电缆应()。
A.短路 B.开路 C.接地 D.充分放电 E.略 F.略 我来回答: 提交
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