热门试题:
[判断题]车站的调车工作，应按车站的技术作业过程及调车作业计划进行。
A.正确
B.错误
[不定项选择题]患者，男性，55岁。既往体健，近6个月来有进行性厌食，消瘦乏力，伴上腹部不适，近2个月来上述症状逐日加重，检查：Hb80g/L，尿常规正常，SG-PT30U，血清白蛋白30g/L，球蛋白20g/L，BSP潴留试验：45min<5%，大便隐血试验（+ + +）。
上述病例最可能的诊断是
A.消化性溃疡
B.慢性胰腺炎
C.慢性迁延性肝炎
D.胃癌
E.门静脉性肝硬化
[单选题]勘察工作方案应由项目负责人主持编写，由勘察单位技术负责人审批签字并( )
A.加盖私章
B.加盖公章
C.加盖注册章
D.加盖任意的章
[单项选择]
B
Many great inventions are greeted with ridicule and disbelief. The invention of the airplane was no exception. Although many people who heard about the first powered flight on December 17, 1903, were excited and impressed, others reacted with peals of laughter. The idea of flying an aircraft was repulsive to some people. Such people called Wilbur and Orville Wright, the inventors of the first flying maching, impulsive fools. Negative reactions, however, did not stop the Wrights. Impelled by their desire to succeed, they continued their experiments in aviation.
Orville and Wilbur Wright had always had a compelling interest in aeronautics and mechanics. As young boys, they earned money by making and selling kites and mechanical toys. Later, they designed a newspaper-folding machine, built a printing press, and operated a bicycle-repair shop. In 1896, when they read about the death of Otto Lilienthal, the brother&rsquo
A. proven wrong by
B. opposite to the ideas of
C. disliked by
D. accepted by
[判断题]制动作用沿着列车由前向后逐辆发生的传播过程就是制动波速。
A.正确
B.错误
[多项选择]以下哪些内容的调查，更宜于使用问卷的方式
A. 对公众参与的建议
B. 居民对城市改建的意愿
C. 城市空间使用的行为
D. 人口的变动情况
E. 城市发展的相关信息
[单选题]“制造成本价”、“批发价”、“零售价”，这些“价”所对应的经济活动的环节分别是()。
A.分配、交换、消费
B.分配、交换、分配
C.生产、消费、消费
D.生产、交换、交换
[多选题]在车辆段范围内（）或（）时，以地面信号为主，调车专用电台为辅
A.运行
B.调车
C.洗车
D.调试
[单选题]
腹泻患者通常口服糖盐水(含葡萄糖和NaCl)而非单纯生理盐水来防止脱水,其主要原因是
A.服用糖盐水可同时补充NaCl和能量物质
B.葡萄糖能够促进小肠上皮细胞顶端膜Na+和Cl-的协同转运
C.葡萄糖通过Na+-葡萄糖继发性主动转运促进小肠上皮细胞顶端膜Na+和水的吸收
D.NaCl和葡萄糖混合液促进胃排空的速率大于单纯盐溶液
E.服用含有NaCl和葡萄糖的糖盐水能有效减少粪便形成
[单选题]《铁路运输收入票据管理工作规则》客货运输票据的保管期限:行李票为（ ）。
A.1年
B.3年
C.10年
D.15年
[多选题]效益性是指财政收支、财务收支以及经济活动实现的( )。
A.生态效益
B.经济效益
C.社会效益
D.环境效益
[判断题]MySQL和HDFS均是用于数据存储的技术
A.正确
B.错误
[判断题]《铁路旅客运输办理细则》（铁运〔1997〕103号）规定，对不符合乘车条件的旅客、人员，站车均应了解原因，区别不同情况予以处理。对有意应不履行义务的，应补收票款并加收票款。
A.正确
B.错误
[单选题]5G中，要求移动性能在高速列车达到_______km/h
A.400
B.500
C.600
D.700
[单项选择]以下哪一项与低血容量无关：（）
A. 低动力性休克
B. 失血性休克
C. 失液性休克
D. 创伤性休克
E. 损伤性休克
[多项选择]变压器的性能由（）决定。
A. 外接元器件
B. 外部接线方式
C. 线圈的绕组匝数
D. 固定方式
E. 连接组别方式
[判断题]图纸上的尺寸，由尺寸界限、尺寸线、尺寸起止线和尺寸数字组成。
[单项选择]切牙乳头又称腭乳头，是哪个神经的麻醉处
A. 鼻腭神经
B. 上牙槽中神经
C. 上牙槽后神经
D. 上牙槽前神经
E. 腭前神经
[单选题]跟据( )引流排水。未建设市政排水管网或超过市政排水能力的区域,可采取疏浚河道、打通堵点、开渠引流、筑堤导流等方法实施排水
A.地形地势
B.天气环境
C.交通情况
D.灾情
[单项选择]弥漫性毛细血管内增生性肾小球肾炎增生的细胞主要是（）
A. 内皮细胞和系膜细胞
B. 系膜细胞
C. 脏层上皮细胞
D. 壁层上皮细胞
E. 以上都不是
[单选题]可动心轨道岔的普通钢轨接头应使用10.9级螺栓，扭矩应保持在（）。
A.700～900N·m
B.120～150N·m
C.1100～1400N·m
D.250～300N·m
[单选题]推进运行的后部补机和使用火炉的车辆，可编在“140产品”车后第( )位之后。
A.5
B.10
C.15
[单选题]Text 4 In 1784,five years before he became president of the United States,George Washington,52,was nearly toothless.So he hired a dentist to transplant nine teeth into his jaw–having extracted them from the mouths of his slaves.That’s a far different image from the cherry-tree-chopping George most people remember from their history books.But recently,many historians have begun to focus on the roles slavery played in the lives of the founding generation.They have been spurred in part by DNA evidence made available in 1998,which almost certainly proved Thomas Jefferson had fathered at least one child with his slave Sally Hemings.And only over the past 30 years have scholars examined history from the bottom up.Works of several historians reveal the moral compromises made by the nation’s early leaders and the fragile nature of the country’s infancy.More significantly,they argue that many of the Founding Fathers knew slavery was wrong–and yet most did little to fight it.More than anything,the historians say,the founders were hampered by the culture of their time.While Washington and Jefferson privately expressed distaste for slavery,they also understood that it was part of the political and economic bedrock of the country they helped to create.For one thing,the South could not afford to part with its slaves.Owning slaves was“like having a large bank account,”says Wiencek,author of An Imperfect God:George Washington,His Slaves,and the Creation of America.The southern states would not have signed the Constitution without protections for the“peculiar institution,”including a clause that counted a slave as three fifths of a man for purposes of congressional representation.And the statesmen’s political lives depended on slavery.The three-fifths formula handed Jefferson his narrow victory in the presidential election of 1800 by inflating the votes of the southern states in the Electoral College.Once in office,Jefferson extended slavery with the Louisiana Purchase in 1803;the new land was carved into 13 states,including three slave states.Still,Jefferson freed Hemings’s children–though not Hemings herself or his approximately 150 other slaves.Washington,who had begun to believe that all men were created equal after observing the bravery of the black soldiers during the Revolutionary War,overcame the strong opposition of his relatives to grant his slaves their freedom in his will.Only a decade earlier,such an act would have required legislative approval in Virginia.37.We may infer from the second paragraph that
A.DNA technology has been widely applied to history research.
B.in its early days the U.S.was confronted with delicate situations.
C.historians deliberately made up some stories of Jefferson’s life.
D.political compromises are easily found throughout the
[单选题]港口国监督缺陷判断和处理中,关于缺陷行动代码和检查行动代码的说法错误的是( )
A.55是通知船旗国
B.70是通知认可的组织
C.151通知国际劳工组织
D.152 通知船员组织
[单项选择]以下关于现值和终值的说法，错误的是( )。
A. 随着复利计算频率的增加，实际利率增加，现金流量的现值增加
B. 期限越长，利率越高，终值就越大
C. 货币投资的时间越早，在一定时期期末所积累的金额就越高
D. 利率越低或年金的期间越长，年金的现值越大
[判断题]办理银行承兑汇票业务，以合法、真实的商品或劳务交易为基础。（ ）
A.正确
B.错误
[单项选择]发文处理的起始环节是（ ）。
A. 拟稿
B. 核稿
C. 签发
D. 缮印
[单项选择]下列关于严重感染的早期集束化治疗的说法不正确的是
A. 早期的血清乳酸测定
B. 抗生素使用前留取病原学标本
C. ICU3小时之内开始广谱抗生素治疗
D. 液体复苏使CVP＞8cmH2O
[单选题] 45 HBsAg(+),抗HBs(-),抗HBc1gM(-),抗HBclgGs (-)。说明他是
A.急性乙肝
B.中和抗体
C.既往感染过乙肝
D.急性乙肝感染阶段或者是慢性乙肝表面抗原携带者
E.急性乙肝窗口期
[单选题]选用下列哪种仪器可以直接得到果蔬汁的糖度( )
A. 折光计
B. 分光光度计
C. 手持糖度计
D. 白利糖表
[判断题]购买和发放劳动防护用品的情况应当记录在案。不得以货币或者其他物品替代劳动防护用品，不得采购和使用无安全标志或者未经法定认证的特种劳动防护用品。
A.正确
B.错误
[单选题]开采属于具有潜在冲击危险的（）的矿井，应对开采煤层进行冲击倾向性鉴定及冲击危险性评价，并制定防冲专项措施。
A.无冲击地压煤层
B.冲击地压煤层
C.冲击地压
[多项选择]工程项目目标应满足的基本条件包括( )。
A. 目标是现实的
B. 目标是具体的
C. 目标是可授权的
D. 目标应具有时间性
E. 目标需超出上级组织目标
[判断题]NSA站点数据配置时，需要在4G小区的测量参数中配置“NR SSB载频”。
A.正确
B.错误
[单项选择]按层次次序将一棵有n个结点的完全二叉树的所有结点从1到n编号，当i≤(n-1)/2时，编号i的结点的右子女的编号是( )。
A. 2i-1
B. 2i
C. 2i+1
D. 不确定
[单选题]采集终端心跳周期参数设置过长可能导致( )。
A.终端频繁上报事件
B.载波通信异常
C.终端频繁上下线
D.电表数据冻结异常
