热门试题:
[单选题]气动内藏门机械闭锁机构中,解锁气缸的作用是( )。
A.使锁钩板复位
B.使S2限位开关复位
C.执行门钩解锁动作
D.使扇形板与限位开关接触
[单选题]各级政府、各部门、各单位应当对预算支出情况开展( )。
A.决算编制
B.支出评价
C.绩效考核
D.绩效评价
[多项选择]脑出血时可以用来减轻脑水肿的药物是( )
A. 甘露醇
B. 速尿针
C. 白蛋白
D. 甘油
E. 低分子右旋糖酐
[判断题]监控中心进入“重庆市公路超限运输许可申报查询系统”,输入车牌进行查询,复核车道上报信息是否申报信息相符。
[单项选择]在RIA中,放射强度测定所用的单位是( )
A. cpm或cps
B. OD
C. G或mCi
D. mCi/μg
E. rpm
[单选题]佝偻病恢复期X线特点是
A.骨质稀疏,密度减低
B.干骺端增宽
C.干骺端呈毛刷状
D.临时钙化带消失
E.临时钙化带重新出现
[单项选择]混合牙列期最容易患龋的恒牙是
A. 切牙
B. 尖牙
C. 前磨牙
D. 第一恒磨牙
E. 第二恒磨牙
[单选题]患者女性,35 岁。停经 41 周,规律腹痛 10 小时,阴道流水 3 小时,LOA,
胎心 150 次/min,宫口开大 7cm,O
0,入院后 2 小时,产程无进展,以下诊断
正确的是
A.
胎膜早破
B.
过期妊娠
C.
潜伏期延长
D.
活跃期停滞
E.
滞产
[单选题]下列细菌是目前医院感染常见的细菌,但除外( )
A. 葡萄球菌属特别是金黄色葡萄球菌和凝固酶阴性葡萄球菌
B. 大肠埃希菌
C. 沙门菌属
D. 铜绿假单胞菌
E. 肺炎克雷伯菌
[单选题]对明渠恒定均匀流,在已知通过流量Q、渠道底坡i,边坡系数m及粗糙系数n的条件下,计算梯形断面渠道尺寸的补充条件及设问不能是:
A.给定水深h,求底宽b
B.给定宽深比β,求水深h与底宽b
C.给定最大允许流速[v]max,求水深与底宽b
D.给定水力坡度J,求水深h与底宽b
[不定项选择题]共用题干
某产妇,30岁,产前检查被诊断为慢性乙型肝炎。4小时前自然临产,护士对她进行了分娩期护理和健康指导。
下列分娩时的护理措施。错误的是
A.鼓励产妇屏气用力缩短第二产程
B.宫口开全后立即注射催产素
C.建议患者积极母乳喂养
D.及时遵医嘱静脉输液
E.每5分钟测量一次胎心率
[单选题]空压机电动机的温度应不大于( )。
A.100℃
B.120℃
C.140℃
D.170℃
[单项选择]金融期货可分为()。
A. 商品期货、利率期货和外汇期货
B. 股票指数期货、利率期货和外汇期货
C. 股票指数期货、商品期货和外汇期货
D. 股票指数期货、利率期货和商品期货
[单选题]The European Commission's proposed tax on digital services is intended to make companies such as Google and Uber pay more.The idea is that such firms are gaming the rules at the expense of other taxpayers.The issue is real and needs to be addressed-but the answer under discussion breaks with both established international practice and plain common sense.Formal talks on the plan are due to start this week.The commission is calling for a 3 percent tax on the turnover of large digital enterprises-those with EU digital revenues over 50 million euros and total global revenues of over 750 million euros.About half the companies affected would be American,the EU estimates.The commission says it has been left with little choice.The value generated by digital companies doesn't require a physical presence,making them harder to rax.Digital businesses arrange their affairs to exploit this:They allocate income to low-tax jurisdictions and,according to officials,end up paying an effective tax of roughly 10 percent of profits,less than half of the burden carried by traditional businesses.Officials acknowledge that the right solution is a thorough overhaul of the corporate tax code,especially as it affects international firms selling digital services-and that this should be done not unilaterally but in cooperation with other countries,notably the U.S.Efforts are in fact underway,but progress has been slow,and EU officials have chosen to do something,anything,as soon as possible.Doing nothing would be better than this.For a start,the plan wouldn't raise much revenue-a meager 5 billion euros each year.And this supposedly fairer tax would bring abnormal results.For instance,companies such as Uber that don't make money will have a new cost to absorb;highly profitable firms with market power,such as Facebook,will be able to pass the tax on to their consumers.Small startups will be exempt from the new tax-unless they're acquired by larger companies.That will discourage consolidations.And the proposal as it stands may tax more activities than intended:Some financial services,for example,seem to be within its scope In its zeal to tax digital enterprises,the commission departs from many of its own stated principles.Its plan would probably require accessing individual,not just anonymized,user data.This runs counter to the EU's strict new rules on privacy,coming into force next month.Efforts to design a multinational solution need to be stepped up,not set aside.The goal should be a fair,multilateral framework that recognizes the complexity of the new digital economy while respecting the sovereignty of nations to set their own tax policy.That's an international challenge demanding an international solution.
According to the first two paragraphs,the EU digital tax proposal
A.protects European industries from competition.
B.aims to updaic esiablished international practice.
C.is a blow to top digital companies.
D.binds only America's tech giants.
[判断题]低压不停电作业可以不设专人监护。
A.正确
B.错误
[单选题]机车、自轮运转特种设备拧紧人力制动机信号鸣笛方式为( )。
A.一短声
B.二短声
C.三短声
D.连续短声
[判断题]当无砟轨道区段轨枕板积雪厚度10厘米以上时,限速200公里/小时及以下。
A.正确
B.错误
[单选题]CRH1A动车组回送面板上设置有压力开关。它将数字输入信号发送到TCMS。当开关探测到( )bar时,表示“制动管路压力低”,即紧急制动。( )
A.4
B.5
C.6
D.8
[多选题]人工挖孔桩施工人员上、下说法错误的是( )。
A.可以乘吊桶,不用另配钢丝绳及滑轮
B.不可以乘吊桶,必须另配钢丝绳及滑轮,并设有断绳保护装置
C.可以利用麻绳上下
D.可以攀爬上下
E.可乘吊桶上下,但必须有断绳保护装置
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》(Q/CSG 510001—2015)第7.3.4条规定:10kV绝缘工具最小有效绝缘长度是()
A.0.7米
B.0.8米
C.0.9米
D.0.4米
[单选题]智能组网目的是解决()问题
A.WIFI弱覆盖
B.大数据分析
C.智能化场景
D.装机效率
[单选题]小电流接地系统中,发生接地故障时,零序电压在( )
A.接地短路点最高
B.变压器中性点最高
C.各处相等
D.发电机中性点最高。
[单选题]"遇区间分界点信号机因故不能开放时,综控员得到司机报告后须与行车调度员联系,并与行车调度员共同确认该信号机至同方向( )信号机及其内方( )计轴区段空闲。
A.第一架、最后一个
B.第一架、第一个
C.最后一架、最后一个
D.最后一架、第一个"
[单项选择]腰椎间盘突出症,出现鞍区麻木及大小便功能障碍,是由于压迫了()
A. 脊髓腰膨大部
B. 脊髓圆锥
C. 马尾神经
D. 骶神经根
E. 骶神经根
[单选题] "移动式防护信号设置在距离车列不小于( )米处。
A.10
B.20
C.25
D.40"
[单项选择]制备测酒精度试样时,收集馏出液的容器为()。
A. 量筒
B. 容量瓶
C. 烧杯
D. 锥形瓶
[判断题]在监盘是如看到风机因电流过大或摆动幅度大的情况下跳闸时,不应再强行启动。( )
A.正确
B.错误
[单选题]列车广播设备由列车提供( )直流电源供电。
A.36V
B.44V
C.48V
D.60V
[多选题]高处作业均应先搭设( )、使用( )、( )或( ),方可进行。
A.脚手架
B.高空作业车
C.升降平台
D.采取其他防止坠落措施
[判断题]使用钳形电流表测量低压线路和配电变压器低压侧电流,应注意不触及其他带电部位,以防接地短路。
A.正确
B.错误
[多选题]某火力发电厂在进行安全检查时发现其燃煤锅炉存在坍塌危险性,主要负责人立即下令排查处理事故隐患,针对锅炉坍塌事故隐患主要负责人应当及时向安全监管监察部门和有关部门进行报告,应报告的内容包括( )。
A.隐患的现状
B.隐患产生的原因
C.隐患的危害程度和整改难易程度分析
D.已采取的隐患控制措施
E.隐患的治理方案
[单项选择]船舶遇难后,在避难支出的货物卸货费属于()。
A. 施救费用
B. 救助费用
C. 特别费用
D. 续运费用
[单选题](B737ng)下列那种机型的机身最短
A.737-600
B.737-700
C.737-800
D.737-900
[简答题]国家突发环境事件应急预案中,当事件条件已经排除、污染物质已降至规定限值以内、所造成的危害基本消除时,由启动响应的( )终止应急响应。
[单选题]参数输入时,如果输入错误,可用( )键取消光标前一个字符。
A.【→】
B.【←】
C.【↑】
[多选题]进站引导信号显示为( )。
A.一个黄色灯光
B.一个绿色灯光
C.一个红色灯光
D.一个月白色灯光
[单选题]用人单位的()对本单位的职业病防治工作全面负责。
A.经理
B.法人
C.主要负责人
D.董事长