热门试题:
[单项选择]赵某,男,25岁。1990年6月20日就诊。主诉:脐腹痛伴剧烈呕吐2天。患者发病初,腹痛呈阵发性加剧,曾吐出咖啡色物,已2天未进食,腹胀拒按,大便秘结,口燥咽干,冷汗自出。患者2年前曾做过阑尾炎手术。检查:于脐旁可触到条索状肿物。舌质偏红,舌苔黄燥,脉滑数有力。该病的治法是 ()
A. 理气止痛
B. 温中散寒,健脾和胃
C. 泻热通便
D. 温补脾胃,缓急止痛
E. 活血化瘀
[单选题]青霉素I型过敏反应发生的机制是由于青霉素进入人体后,刺激机体产生某种抗体,是再次接触青霉素时发生过敏反应,这种抗体是( )
A.IgA
B.IgE
C.IgM
D.IgG
E.IgD
[填空题]“气瓶安全检查规程”规定,车用压缩体燃气钢瓶每( )年检验一次
[判断题] A joint venture leads to increases in national welfare if its cost-reduction effect is due to productivity gains and if it more than offsets the market-power effect.
A.正确
B.错误
[单选题]党政机关公文划分文种的本质在于,一个文种就意味着一种()。
A.写作文体
B.办事模式
C.写作方式
D.实际用途
[判断题]在铁路工程线、营业线上使用单轨车、小平车、梯车时,必须取得已批复的施工计划,做好登、销记签认,严禁违规上道。
A.正确
B.错误
[单选题](44332)正线特重型轨道应采用( )。
A.Ⅰ型木枕
B.Ⅱ型混凝土枕
C.Ⅱ型或Ⅲ型混凝土枕
D.Ⅲ型混凝土枕
[单选题]现场放置时间超过( )个月的变压器应注油保存,并装上储油柜和胶囊,严防进水受潮。
A.1
B.
C.2
D.3
E.4
[简答题]生产控制大区拨号访问和远程运维业务应经电力监控系 统归口管理单位(部门)批准方可实施,服务器和用户端均应使用经国家指定部门认证的安全加固的操作系统并采取()等安全防范措施。
[单项选择]财产清查时,如果实存数大于账存数,则属于( )。
A. 盘盈
B. 盘亏
C. 毁损
D. 盘盈或盘亏
[判断题] 教育费附加以各单位和个人实际缴纳的增值税、消费税的税额为计征依据。税额指当月入库税款,不包括当月缴纳的属于以前月度的税款。( )
A.正确
B.错误
[判断题]动力制动:依靠机车的动力机械产生的制动力,包括电阻制动、再生制动、液力制动。( )P104T439
A.正确
B.错误
[单项选择]工作相关疾病在煤矿工人中患病率较高,腰腿疼痛患病率占煤矿井下总人数的()%。
A. 10~15
B. 15~20
C. 20~30
D. 30~35
[单选题]高压试验正常情况下将主压缩机扳键开关置于“合”位时,非操纵端空压机启动,当总风缸压力升至( )kPa时,空气压缩机自动停止工作。
A.750±20
B.800±20
C.900±20
D.950±20
[多项选择]下列基准物质中,可用于标定EDTA的是()。
A. 无水碳酸钠
B. 氧化锌
C. 碳酸钙
D. 重铬酸钾
[单项选择]体谅模式是英国教育家麦克菲尔创立的一种德育模式,这种模式是属于()。
A. 道德意志的发展
B. 道德认识的发展
C. 道德行为的发展
D. 道德情感的发展
[填空题]重复服用阿司匹林可能导致的后果有()、()、()。
[多项选择]汞极易挥发,在消化样品时一般采用的消化方法有()。
A. 酸一硝酸法
B. 酸一硫酸一五氧化二钒法
C. 化法
D. 上都是
[判断题]对发站已承运的行李、包裹应妥善保管,铁路组织绕道运输时,运费不补不退。
[单项选择]患者,男,13岁,发热、腹痛腹泻、食欲不振、尿少色黄、排黏液脓血样大便、里急后重、精神疲倦3天,体检发现脐周压痛,肠鸣音亢进,粪便镜检发现每个高倍视野内有白细胞15~18个。本病例的诊断应首先考虑()
A. 急性阿米巴痢疾
B. 急性菌痢
C. 急性血吸虫病
D. 细菌性食物中毒
E. 霍乱
[单选题]Text 1 They are falling like dominoes.Executives caught behaving badly might once have been slapped on the wrist.Today they are shown the door.On July 19th Paramount Television fired its president,Amy Powell,over reports of insensitive comments about race.This is only the latest bigwig to go in a line of departures linked to"personal misconduct"."Boards are now holding executives to higher standards,looking not just at how they treat people but also how they talk to and about them,"says Pam Jeffords of Mercer,a consultancy.The thread connecting these incidents is that all are about perceptions of executive integrity,and by extension,trust.Since trust violations are particularly hard for firms to overcome,often more so than incompetence,firms may believe that firing an errant executive can be the safest,most pragmatic course of action.Executives were never alt angels.What has changed is that boards are now far less willing to overlook bad behaviour for the sake of superior performance.A 2017 report from PwC,a professional-services firm,found that the share of chief-executive dismissals that were due to ethical lapses increased between 2007-11 and 2012-2016,not because bosses were behaving worse but because they were held more accountable.Boards seem to be acting thus for two reasons.First,to protect employees and create a safe and inclusive work environment.Second,to protect their brands'reputations.A 2016 study from researchers at Stanford showed that the fallout from chief executives behaving badly,but not unlawfully,was large and lasting.On average each of the 38 incidents studied garnered 250 news stories,with media attention lasting 4.9 years.Shares usually suffered,though not always.And in a third of cases firms faced further damage,including loss of major clients and federal investigations.Should an executive's words be judged as harshly as their actions?From the perspective of protecting the brand,as well as discouraging a toxic work environment,they probably should.The power of social media to turn a whispered comment into a Twitterstorm,and the fact that everyone now has a mobile recording device,demands a decisive response.But boards and the media also risk rushing to judgment and painting the wicked with too broad a brush.An insensitive remark made long ago or as a one-off is not the same as one made as the face of the firm or as part of a consistent pattern.Disney's firing of James Gunn,a director,last week over tweets from a decade ago,before he was hired and for which he has apologised,seems to be one instance in which such distinctions have been papered over.And plenty of companies benefit from environments where people can speak openly and brainstorm out loud.Once the fallen dominos have been counted,some firms may turn out to have been too gung-ho in responding to the"Weinstein effect".Many,perhaps most,exits will be justified.But all?
The author's attitude towards James Gunn can be described as——
A.critical
B.sympathetic
C.contemptuous
D.appreciative
[单选题]已知某复合材料由芯材和上面板组成,芯材厚度为25.06 mm,导热系数为0.070 W/(m•K),面板厚度为5.22 mm,导热系数为0.45 W/(m•K),修正系数为1,计算该复合材料的热阻( )(m2•K / W)。7分
A. 0.37;
B. 0.38;
C. 0.39;
D. 0.40。
[单项选择]新生儿常见的特殊生理状态,以下哪项不符合:()
A. 生理性黄疸
B. 假月经
C. 新生儿粟粒疹
D. 新生儿湿肺
E. 乳腺肿大
[单项选择]男性,50岁,多年高血压史,两天来因情绪波动,突感头痛加剧,伴恶心、呕吐,视物模糊,检查:BP:230/140mmHg,心率90次/分,期前收缩2~4次/分,双肺呼吸音清晰,目前应采取下列哪项治疗措施为最佳()
A. 静脉滴注普罗帕酮
B. 静脉推注呋塞米
C. 静脉滴注硝普钠
D. 静脉推注地西泮
E. 静脉推注利多卡因
[单选题]超声波垂直入射至界面上时,其透过波方向( )。
A.改变
B.不变
C.反转180°
D.不确定
[单项选择]入网机构为未在本机构开立账户的客户办理电子汇兑业务时,应按照《金融机构客户身份识别和客户身份资料及交易记录保存管理办法》相关规定核对客户的()或者其他身份证明文件,登记客户身份信息,并留存()件或者其他身份证明文件的复印件或者影印件。
A. 预留印鉴
B. 有效身份证件
[判断题]( )使用远交叉视标进行检查时,加用正负0.50D的交叉柱镜后可见到远交叉视标为水平线与垂直线一样清晰。
A.正确
B.错误
[多选题]动车组列车在区间被迫停车时,随车机械师、客运乘务人员等均听从动车组司机的指挥,处理有关()事宜。
A.行车
B.安抚乘客
C.列车防护
D.事故救援
[多选题]入职训练培训(),予以淘汰。
A.考核不合格
B.思想不稳定
C.业务能力一般
D.有精神疾病
[多项选择]在实地标定(),是施工放样的基本测量工作。
A. 长度
B. 角度
C. 点的平面位置
D. 点的高程位置
E. 直线
[单选题] ( )是指人员在山地作业、登山或旅游时,意外掉入山谷,被困于高山、悬崖峭壁等处,无法自行脱身,生命受到威胁而采取的救援行动。
A. 山地救人
B. 地震救援
C. 水域救人
D. 地质灾害救援
[填空题]采用电话联系法行车的区段内,行车指挥权在车场和( )。
[判断题]高速铁路正常运行时规定,中性点接地系统中,中性点接地刀闸禁止断开。
A.正确
B.错误
[单选题]缺氧危险作业是指具有潜在的和明显的缺氧条件下的各种作业,主要包括一般缺氧危险作业和特殊缺氧危险作业。
A.正确
B.错误
C.略
D.略
E.略
F.略
[单选题]社会历史观的基本问题是()。
A. 社会存在和社会意识的关系问题
B. 生产力和生产关系的关系问题
C. 物质与意识的关系问题
D. 真理与价值的关系问题
[判断题]《安规》第3.5.4条,焊补钢轨、辙叉时,电焊机应采取接地措施,防止人员触电灼伤。
A.正确
B.错误