工艺操作上造成机组振动增大的原因有哪些？-我要搜题网

[单选题]交流电力牵引区段，在信号电缆的同一芯线上，任何两点间的感应电动势：在接触网故障状态下，感应纵电动势不得超过电缆交流耐压试验电压值的( )。 ( )
A.60％
B.65％
C.80％
D.85％

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[单选题]十八大在生态文明建设方面提出的新目标、新概念是()。
A.实现中华民族永续发展
B.尊重自然
C.建设美丽中国
D.建设小康社会

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[简答题]白腐乳的褐变原因是什么？应该怎样解决？

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[简答题]严密性试验的要求有哪些？

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[单项选择]

With the development of the global economy, many companies state their basic objective of engaging in a worldwide manufacturing business and claim that they are or are becoming a multinational company.
Some economists (1) between the international firm and the multinational company in the following way: the "international firm" is a term that (2) enterprises with various degrees of world orientation in their business; (3) , the "multinational company" is one type of international firm. The international firm engages in any activity or (4) of activities from exporting, importing and licensing to full scale manufacturing in a number of countries. The international (5) of such a company varies from the point at which overseas sales and profits take on importance and top management begins to (6) some attention to them to the stage (7) the company is globally oriented in its marketing, production, (8)
A. profits
B. benefits
C. advantages
D. cashes

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[简答题]厅巡岗、站台岗、乘务工作人员遇到乘客求助问询时的形体标准是什么？

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[多选题]下列属于防护用品的有( )。
A. 头部防护器具
B.呼吸防护器具
C.眼防护器具
D.身体防护用品

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[单项选择]随着流量的不断增加，立管中水流状态主要经过三个阶段，依次是（）.
A. 附壁螺旋流，水塞流，水膜流
B. 水膜流，水塞流，附壁螺旋流
C. 附壁螺旋流，水膜流，水塞流
D. 水塞流，附壁螺旋流，水膜流

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[单项选择]患儿．5岁，突然壮热，神志昏迷，烦躁谵妄，反复抽搐，惊厥不已，呕吐腹痛，大便腥臭或夹脓血，舌质红，苔黄腻，脉象滑数。治疗首选方剂是( )
A. 羚角钩藤汤
B. 普济消毒饮
C. 黄连解毒汤合白头翁汤
D. 白虎汤合玉枢丹
E. 清瘟败毒饮

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[多项选择]月度材料需用计划应根据( )进行编制。
A. 施工图纸
B. 施工进度
C. 施工方案
D. 施工组织设计
E. 材料分析

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[判断题]现今的条形码印刷上去之后就无法更改,RFID标签则可以重复地新增、修改、删除RFID卷标内储存的数据,方便信息的更新。
A.正确
B.错误

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[多选题]AC004 对减压蒸馏的描述正确的是( )。
A.在压力低于150kPa的负压下进行
B.常压塔底重油中高沸点馏分会在较低的温度下汽化,避免高沸点馏分的裂解
C.塔底得到的减压渣油沸点在600℃以上
D.减压蒸馏塔的抽真空设备常用的是蒸汽喷射泵或机械真空泵

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[单项选择]To paraphrase 18th-century statesman Edmund Burke, "all that is needed for the triumph of a misguided cause is that good people do nothing." One such cause now seeks to end biomedical research because of the theory that animals have rights ruling out their use in research. Scientists need to respond forcefully to animal rights advocates, whose arguments are confusing the public and thereby threatening advances in health knowledge and care. Leaders of the animal rights movement target biomedical research because it depends on public funding, and few people understand the process of health care research. Hearing allegations of cruelty to animals in research settings, many are perplexed that anyone would deliberately harm an animal. For example, a grandmotherly woman staffing an animal rights booth at a recent street fair was distributing a brochure that encouraged readers not to use anything that comes from or is tested in animals―no meat, no fur, no medicines. Asked if she opposed i
A. a medical practitioner.
B. an enthusiast in animal rights.
C. a supporter of animal research.

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[单选题]‖年9月，我国发布的《中国学生发展核心素养》的三大领域包括：文化基础、社会参与和（）
A.健康生活
B.实践创新
C.自主发展
D.科学精神

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[单选题]在允许速度小于200km/h的线路上,曲线正矢作业验收容许偏差中曲线半径250mA.8mm
B.10mm
C.12mm
D.15mm

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[单选题]一般情况下,猪油的沸点为( )。
A.181℃
B.221℃
C.261℃
D.301℃

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[多项选择]《宋刑统》与《唐律疏义》的重要区别在于哪里( )
A. 《宋刑统》将敕、令、格、式中的刑事规范附于律后
B. 《宋刑统》增加了凌迟、刺配之法
C. 〈宋刑统》一直被宋朝沿用，“终宋之世，用之不改”
D. 每篇之下设门

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[单项选择]发送电子邮件所用的协议是（）。
A. SMTP
B. POP3
C. NNTP
D. FTP

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[单项选择]使用麻黄碱治疗支气管哮喘时，引起的失眠属于（）。
A. 治疗作用
B. 后遗效应
C. 变态反应
D. 副作用