热门试题:
[单选题]室外构架上工作,在作业人员上下铁架或梯子上,应悬挂( )的标示牌。
A.“禁止攀登,高压危险!”
B.“在此工作!”
C.“止步,高压危险!”
D.“从此上下!”
[填空题]社会工作主要包括()、预评估、制定计划、介入、评估几个环节。
[判断题]拨道作业时直线地段如两股方向误差不大时,一般以顺里程方向的左股为基准股;如一股方向好,则以方向较好的一股为基准股;( )
A.正确
B.错误
[单选题]344. 344.马克思称之为实践精神方式的是()。
A.科学
B.艺术
C.道德
D.语言
[判断题]在安装分段绝缘器时,在承力索断线处两侧适当位置各打紧一个楔形紧线器,并在其前面(即楔形紧线器受拉侧)承力索上安装钢线卡子或吊线线夹,以防紧线时楔形紧线器滑动。
[单选题]基金管理人( )设定公司的合规管理目标,审核、监督公司风险控制制度的有效执行,对合规管理的有效性承担责任。
A.股东会
B.董事会
C.经理层
D.督察长
[多选题]按照《消防法》的规定,下列属于机关、团体、企业、事业单位应当履行的消防安全职 责的有()。
A.承担火灾扑救工作
B.-实行防火安全责任制
C.组织防火检査,及时消除火灾隐患
D.按照国家有关规定配置消防设施和器材、设置消防安全标志
E.保障疏散通道、安全出口畅通,并设置符合国家规定的消防安全疏散标志
[单选题]零售客户小王每天收工之前都要盘点卷烟商品以确保没有丢失,这体现了小王的( )需求。
A.安全
B.利润
C.服务
D.成长
[判断题]列车运行中发生电器设备冒烟起火时,要立即关闭电源开关或断开保险。在电气化区段,应立即通知电力部门将接触网停电,以便灭火。在电源未切断前任何人不得用水灭火。
A.正确
B.错误
[填空题]胶接绝缘,钢轨端面与绝缘端板之间应密贴,间隙不应大于( )。
[单选题]氯霉素的主要不良反应是
A.骨髓抑制
B.二重感染
C.胃肠道反应
D.耳毒性
E.影响骨、牙生长
[单项选择]具有首过效应的是()
A. 栓剂
B. 软膏剂
C. 两者均是
D. 两者均不是
[单选题]动车组转向架( )特点包括:便于轴箱定位刚度的选择,能同时兼顾高速运行的稳定性、乘坐舒适度及曲线通过性能。
A.轴箱定位装置
B.驱动装置
C.联轴节
D.牵引装置
[多选题]在预付费电能表中常用的IC卡有 ( )
A.存储卡
B.加密卡
C.CPU卡
D.PASM卡
[多选题]车辆调度是根据配送线路方案确定订单的配送人员、( ),生成调度指令。
A.配送车辆
B.配送车辆和配送路线
C.客户所需
D.配送路线
[单选题]采购人委托采购代理机构招标的,应当与采购代理机构签订( ),确定委托代理的事项,约定双方的权利和义务。
A.委托协议
B.采购协议
C.代理协议
D.委托代理协议
[多选题]合同签订前,应进行合同审查,合同审查包括( )和( )。
A.业务审查
B.法律审查
C.技术审查
D.形式审查
[单选题]在电路中,电流之所以能流动,是由电源两端的电位差造成的,我们把这个电位差叫做( )
A.电压
B.电流
C.电源
D.电容
[多选题]施工现场道路跨越沟槽时应搭设牢固的便桥,经验收合格后方可使用。便桥应符合()。
A.人行便桥的宽度不得小于1m
B.手推车便桥的宽度不得小于1.5m
C.汽车便桥的宽度不得小于3m
D.汽车便桥的宽度不得小于3.5m
E.略
F.略
[多项选择]“休克疗法”的基本内容是()
A. 自由化
B. 私有化
C. 激进化
D. 稳定化
[单项选择]对当日不能进行涂片检查的痰标本,须置于()冰箱保存,注意防止痰液干涸或污染。
A. 0℃
B. 4℃
C. 10℃
D. 20℃
[单选题] 关于薪酬等级的表述,错误的是( )
A.其划分的依据是职位评价的结果
B.其划分的数量应当能够反映出职位的价值差异
C.薪酬等级确定之前要去定薪酬区间
D.将薪酬等级划分为若干级别,每个级别对应一个具体的薪酬数值。
[单项选择]公安机关在处置突发事件过程中,对非法聚集、拒不服从命令的人员可以采取()手段。
A. 强行带离现场
B. 继续盘问
C. 暴力驱逐
D. 强制传唤
[单选题]( )目前使用最普遍的是采用X射线检验,还有超声波探伤和磁力探伤。
A.无损探伤
B.外观检查
C.仪器检测
D.机器检测
[单选题]交联聚乙烯绝缘单芯电力电缆的最小弯曲半径不得小于电缆外径的( )倍。
A.5
B.10
C.15
D.20
[单选题]《新青年》的最初创办人是( )
A.鲁 迅
B.李大钊
C.陈独秀
D.胡 适
[判断题]无缝线路长轨条原焊接接头处理时,应采用机械截锯,截面容许误差为:轨底端部平直度偏差不大于1mm。
A.正确
B.错误
[判断题]锚喷、锚网喷等形式多用于服务年限长的开拓巷道和硐室。
A.正确
B.错误
[多项选择]判别污水水质的复杂程度属于中等的依据下列说法正确的是( )。
A. 只有一类污染物,且需预测其浓度的水质参数数目不小于7
B. 含有两类污染物,且需预测其浓度的水质参数数目小于10
C. 只有一类污染物,或需预测其浓度的水质参数数目不小于7
D. 含有两类污染物,或者需预测其浓度的水质参数数目不小于10
[判断题]电分相内AF 线检修时,应根据AF 线布置方式装设接地线,防止中性区感应电伤害。
A.正确
B.错误
[多项选择]结核病的基因技术快速诊断新方法包括()
A. PCR
B. cDNA探针
C. BACTEC460自动快速法
D. 光敏生物素DNA探针
E. 地高辛DNA探针
[单选题]企业应在醒目位置设置重大()。
A.风险告知栏
B.风险告知卡
C.风险告知书
D.风险告知通知
[简答题]One of the biggest--and most lucrative-applications of artificial intelligence(AI)is in health care.And the capacity of ai to diagnose or predict disease risk is developing rapidly.In recent weeks researchers have unveiled AI models that scan retinal images to predict eye-and cardiovascular-disease risk,and that analyse mammograms to detect breast cancer.Some ai tools have already found their way into clinical practiceaI diagnostics have the potential to improve the delivery and effectiveness of health care.Many are a triumph for science,representing years of improvements in computing power and the neural networks that underlie deep learning.In this form of Al,computers process hundreds of thousands of labelled disease images,until they can classify the images unaided.In reports,researchers conclude that an algorithm is successful if it can identify a particular condition from such images as effectively as can pathologists and radiologists.But that alone does not mean the ai diagnostic is ready for the clinic.Many reports are best viewed as analogous to studies showing that a drug kills a pathogen in a Petri dish.Such studies are exciting but scientific process demands that the methods and materials be described in detail,and that the study is replicated and the drug tested in a progression of studies culminating in large clinical trials.This does not seem to be happening enough in ai diagnostics.Many in the field complain that too many developers are not taking the studies far enough.They are not applying the evidence-based approaches that are established in mature fields,such as drug development These details matter.For instance,one investigation published last year found that an model detected breast cancer in whole slide images better than did 11 pathologists who were allowed assessment times of about one minute per image.However,a pathologist given unlimited time performed as well as al,and found difficult-to-detect cases more often than the computers Some issues might not appear until the tool is applied.For example,a diagnostic algorithm might incorrectly associate images produced using a particular device with a disease--but only because,during the training process,the clinic using that device saw more people with the disease than did another clinic uSing a different device These problems can be overcome.One way is for doctors who deploy aI diagnostic tools in the clinic to track results and report them so that retrospective studies expose any deficiencies.better yet such tools should be developed rigorously-trained on extensive data and validated in controlled studies that undergo peer review.This is slow and difficult,in part because privacy concerns can make it hard for researchers to access the massive amounts of medical data needed.A News story in Nature discusses one possible answer:researchers are building blockchain-based systems to encourage patients to securey share information.At present,human oversight will probably prevent weaknesses in ai diagnosis from being a matter of life or death.That is why regulatory bodies,such as the US Food and Drug Administration,allow doctors to pilot technologies classified as low risk But lack of rigour does carry immediate risks the hype-fail cycle could discourage others from investing in similar techniques that might be better.Sometimes,in a competitive field such as al,a well-publicized set of results can be enough to stop rivals from entering the same field Slow and careful research is a better approach.Backed by reliable data and robust methods,it may take longer,and will not churn out as many crowd-pleasing announcements.But it could prevent deaths and change lives
[多选题]依据《中国南方电网有限责任公司电力安全工作规程》(Q/CSG510001-2015)第26. 2. 5. 2条规定: 携带型接地线使用前应检查是否完好, 如发现( )均不应使用。
A.绞线松股
B.绞线断股
C.护套严重破损
D.夹具断裂松动
[单项选择]下列选项中,不属于建设单位编制的工程项目年度计划的是()。
A. 年度计划项目表
B. 年度竣工投产交付使用计划表
C. 年度劳动生产率计划表
D. 年度建设资金平衡表