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[单项选择]生产线上某一加工设备的加工质量波动具有一定的周期性,不宜采用( )。
A. 简单随机抽样
B. 系统抽样
C. 整群抽样
D. 分层抽样

参考答案:B
答案解析:[解析] 系统抽样的抽样起点一旦被确定后,整个样本也就完全被确定,因此这种抽样方法容易出现大的偏差。当总体含有一种周期性的变化,而抽样间隔又同这个周期(或周期的倍数或一半等)相吻合时,就会得到一个偏倚

热门试题:

第1题:[判断题]DL 5027-2015电力设备典型消防规程规定,室内的油浸式变压器,应设置事故排烟设施。
A.正确
B.错误
参考答案:B
DL 5027-2015电力设备典型消防规程

第2题:
[单选题] 135. 气测录井资料处理要求,绘制随钻地质录井图时,气体录井栏宽度根据需要设置,绘制全烃.组分值,用不同( )区分。(出自Q/SY 128-2020)
A.颜色
B.符号
C.线型
D.代码
参考答案:A


第3题:
[单选题]可以增加钙消化吸收的营养素是( )。
A.维生素A
B.维生素D
C.脂肪
D.铁
参考答案:B


第4题:
[判断题]如果未识别出直接或者间接拥有超过25%公司股权或者表决权的自然人,或者对满足前述标准的自然人是否为受益所有人存疑的,应当考虑将通过人事、财务等方式对公司进行控制的自然人判定为受益所有人
A.正确
B.错误
参考答案:A


第5题:
[判断题]吊运氧气瓶、乙炔瓶等压力容器和危险品时,必须有安全描施。( )
A.正确
B.错误
参考答案:A


第6题: [单项选择]
对“羌管弄晴,菱歌泛夜”句的理解不确切的是()。
A. “羌管”泛指乐器
B. “菱歌”是采菱女的歌声
C. 晴日,只有笛声清脆;夜晚,才有菱歌悠扬
D. 此处运用了互文的手法
参考答案:C

第7题: [单项选择]
From the first paragraph, we can infer that the author is most probably ______.


A. an expert
B. a geographer
C. a journalist
D. a scientist
参考答案:C
答案解析:推断题。从作者的语气和文章的文体可以推断本文是以采访的形式介绍尼罗河三角洲的,故作者极有可能是一名记者。

第8题: [单项选择]
男性54岁,车祸,右胫腓骨中1/3粉碎骨折,复位后夹板固定,因右小腿肿胀足趾剧烈疼痛伤后36小时转诊,检查:右足趾明显肿胀,青紫,感觉麻木,足趾活动差,毛细血管充盈尚存在,取除夹板见右小腿肿胀甚,皮温较高且皮肤有水泡出现,考虑并发最可能为()
A. 腓总神经损伤
B. 胫前动脉损伤
C. 胫后动脉损伤
D. 胫动脉损伤
E. 骨筋膜室综合征
参考答案:E

第9题:
[单选题]铸件往往难以用超声法检验,是因为( )
A.材料结构非常致密
B.晶粒结构粗大
C.流线均匀
D.缺陷任意取向
参考答案:B


第10题:
[单选题]作业人员发现安全隐患应妥善处理或向(  )报告;发现直接危及人身、电网和设备安全的紧急情况时,应立即停止作业或在采取必要的应急措施后撤离危险区域
A.A.上级
B.B.业主
C.C.监理
D.D.施工单位
参考答案:A


第11题:
[判断题]高速铁路天窗时间原则上不应少于240分钟( )
A.正确
B.错误
参考答案:A


第12题:
[判断题]2.13 机动车驾驶证管理系统中的"住址"应按照申请人身份证明记录的内容录入,但必须按照系统操作要求,选择省、市、区(县)的名称。
A.正确
B.错误
参考答案:A


第13题:
[判断题]高处作业时下方不得有人作业。必须同时作业时,应做好防止落物伤人的措施,并设专人看护。( )
A.正确
B.错误
参考答案:A
【《铁路劳动安全》第160页】
难度:五级

第14题: [单项选择]

Relief workers were shocked by what they saw.()


A. moved
B. touched
C. surprised
D. worded
参考答案:C
答案解析:

shock和surprise都有“使……吃惊”的意思。如:I was surprised to find that they had a

第15题:
[多选题]以下关于盘、柜安装,说法正确的有()。
A.盘、柜底加垫时不得将手伸入底部
B.安装固定好以前应有防止倾倒的措施
C.不得使用切割机在屏柜内工作
D.做好临时支撑,固定好后方可拆除
参考答案:ABCD


第16题:
[单选题]当人体电阻一定时,作用于人体的电压越高,流过人体的电流()
A.越大
B.越小
C.不确定
参考答案:A


第17题:
[单选题]编制运输方案时,对客户不能确定具体装车日期的,按( )处理,待客户确定具体日期后再确定装车日计划方案;对连续装车的稳定货源,按旬排定运输方案。
A.旬计划
B.日需求
C.阶段预约
D.月计划
参考答案:C


第18题:
[填空题]事故情况下,牵引变压器允许过负荷情况是:10min允许的过负荷最大值为()。
参考答案:100%


第19题:
[单选题]检查发现曳引轮的轮槽有异常磨损现象——曳引绳与( ) 有接触,这样将会影响钢 丝绳与曳引轮上的摩擦力,此时应及时更换曳引轮。
A.曳引轮
B.轮槽槽底
C.轮槽侧壁
D.轮槽
参考答案:B


第20题:
[单选题]运维管理员可以通过 ManageOne 运维面中哪个界面使用 FusionNetDoctor 工具?
A.集中告警
B.运维地图
C.安全
D.系统管理
参考答案:B


第21题: [单项选择]
下列现象中,不是锅炉缺水事故现象的是( )。
A. 水位报警器发出低水位警报
B. 水位表内看不到水位,表内发白发亮
C. 过热蒸汽温度下降
D. 锅炉排烟温度上升
参考答案:C
答案解析:锅炉缺水时,水位表内往往看不到水位,表内发白发亮。缺水发生后,过热蒸汽温度升高,给水流量不正常地小于蒸汽流量。

第22题: [多项选择]
患者,男性,45岁,因"左眼被拳头伤伴视力下降3小时"就诊。眼部检查:Vod1.2,VosFC/30cm,小孔视力不能提高;左眼上下眼睑轻度瘀肿,结膜轻度水肿,混合充血(++),颞侧可见出血斑,角膜轻度水肿,前房深浅大致正常,血性房水,积血接近瞳孔中央,虹膜无明显震颤,瞳孔6mm×6mm,直接、间接对光反射消失,晶状体无明显混浊,眼底欠清。右眼裂隙灯和眼底检查无特殊。对该患者的急诊处理包括()
A. 前房冲洗
B. 降眼压
C. 缩瞳
D. 包扎双眼
E. 止血治疗
参考答案:B, D, E

第23题: [判断题]
闪光对焊对接头清理工作要求不高。
参考答案:对

第24题: [填空题]
任何程序都可由()、()和()3种基本控制结构构造。这3种基本结构的共同点是()、()。
参考答案:顺序;选择;循环;单入口;单出口

第25题:
[单选题]下井所有人员必须携带( )。
A.移动通信终端
B.便携式甲烷检测报警仪
C.人员位置监测系统标识卡
参考答案:C


第26题: [简答题]
调整轨道电路应注意的要点有哪些?
参考答案: ①调整工作必须在轨道电路良好状态下进行;
②供电端限流电阻器不得置于零,以免损坏电流设备。一般将限流电阻调至全电阻的二分之一左右。
③调整轨道继电器电压,应考虑电源电压降低到最小允许值和道床电阻最小时的不利因素。在非法占用情况下,轨道继电器端电压都不应低于工作值。
④调整工作完成后,必须进行调整状态与分路状态的检查。

第27题: [单项选择]
情人节又名“生瓦伦丁节”,起源于(),于每年2月14日举行。
A. 古代罗马
B. 古代印度
C. 古代埃及
D. 古代雅典
参考答案:A

第28题: [单项选择]
甲男明知乙女只有13周岁,误以为法律并不禁止征得幼女同意后的性交行为。于是在征得乙女的同意后与乙女发生了性交。甲的行为属于下列何种情形
A. 幻觉犯,不构成强奸罪
B. 法律认识错误,构成强奸罪
C. 对象认识错误,构成强奸罪
D. 客体认识错误,不构成强奸罪
参考答案:B
答案解析:[测试点] 刑法的认识错误。
[解析] 幻觉犯是指行为人误认为自己实施的是刑法所禁止的犯罪行为,但实际上该行为并非刑法禁止的犯罪行为的情况,幻觉犯不构成犯罪,而甲男误认为自己不犯罪,所以甲男不是

第29题:
[多选题]视觉空间智能的著名人物有( ) 等。
A.罗丹
B.毕加索
C.哥伦布
D.韩美林
参考答案:ABCD
本题四个答案均符合题目,答案是 ABCD

第30题: [单项选择]
可导致血清总蛋白及白蛋白减少的疾病是()
A. 疟疾
B. 肺炎球菌肺炎
C. 多发性骨髓瘤
D. 肾病综合征
E. 急性肝炎
参考答案:D

第31题:
[判断题]70m浮选尾矿浓密机溢流水只能到磨矿分级水池。( )
A.正确
B.错误
参考答案:A


第32题:
[填空题]对一般刑事案件现场勘验信息在现场勘验检查工作完毕后 48 小时内完成全部文字和照片信息录入并提交。
参考答案:48


第33题:
[判断题]重点关注和防控可疑人员在营业场所从事违法违规活动或超长时间逗留,发现问题应立即制止,并予劝离,情节严重的应向上级行及时报告。
A.正确
B.错误
参考答案:A


第34题:
[判断题]右手有三指健全,且双手手掌完整,肢体和手指运动功能正常的,可以申请小型汽车、小型自动挡汽车的机动车驾驶证。
A.正确
B.错误
参考答案:B


第35题: [单项选择]
为当前表中所有学生的总分数增加10分,可以使用的命令是( )。
A. CHANGE总分WITH总分+10
B. REPLACE总分WITH总分+10
C. CHANGE ALL总分WITH总分+10
D. REPLACE ALL总分WITH总分+10
参考答案:D
答案解析:[解析] 在Visual FoxPro中修改记录的命令有交互修改的EDIT和CHANGE命令和直接修改的REPLACE命令。EDIT和CHANGE命令均用于交互对当前表的记录进行编辑、修改,默认编辑的

第36题: [简答题]Task Sheet:
A:Time Management:the impotance of prioritizing tasks of work
B:Recruitment:how to select competent applicants
C://Customer Relations:how to deal with customer complaints effectively


参考答案:A:Time Management:the importance of prioritizing tasks of worksuggested ideas:
·One Important aspect of time management is to know how to prioritize tasks of work.There are always all kinds of tasks to be fulfilled at work.One often feels that there is not enough time to complete aIlthese tasks and thus feels stressed.However,if one is good at managing time.One can al-ways find time to complete all the tasks。 What is impo~ant in time management is to p rioritize the tasks one has to finish and allocate one’s time in accordance with the priorities.Some of these tasks are urgent tasks and need to be fulfilled as soon as possible whereas other tasks are not uraent and can be postponed for a while.
· For example.suppose you work as the assistant to the general manager of your company.The general manager has given you several tasks for the day:to draft a letter in answer to the chairman’s inquiry letter about the investment agreement to be signed tomorrow:to send an email to all the staff for a staff meeting to be held next week;to arrange a dinner with an important client for the coming weekend;in addition,you have all the routine work to do:to answer telephone calls:to take telephone messages for the general manager;to dictate all his instructions and pass on the instructions to all department managers.It seems that the first priority for today’s work is to do all the routine work as they cannot be postponed.Then you need to squeeze in the other assigned tasks in the following order:to fast read the chairman’s letter and the investment agreement in Order to draft the letter in answer;to call the client to find out what time of the week.end is convenient and then call a good restaurant to reserve a room for the dinner;to find out from the HR manager the venue and time for the staff meeting and then send the email on behalf of the general manager to request everyone to be present at the scheduled meeting.If there is not enough time for you to complete all these tasks in addition to your routine work.Then perhaps you can draft and send the email early next morning when you come to the office.
B:Recruitment:how to select competent applicants
Suggested Ideas:
· First.it is important to decide on the requirements for applicants,because only when the requlrements are set,can the recruitment panel judge whether an applicant is competent or not.To set the reauirements for a certain job,it is important to decide on the responsibilities for the job.For example,if the job is that of a receptionist,then,its responsibilities would probably include:to answer telephone calIs with good telephone manners,to take telephone messages in both Chinese and English.to receive visitors in a professional way,to be able to communicate with English speaking caIIers.visitors,clients,to respond to emails sent by visitors and clients,etc.Then the requtrements for such a iob could be set as:having a certificate for basic computer skills,a certificate showing level of English proficiency,etc.
· Secondlv,it is important to prepare a job advertisement describing the responsibilities and requirements and have the advertisement publicized so as to invite applications.
· Thirdlv,when all the applications are submitted,it is important to screen the CVs of job applicants and shortlist the applicants for going through further recruitment procedures such as sitting in a standardized test and being interviewed.
· Next.it is important to give those applicants whose CVs seem to meet the requirements a standard-ized test to find out if they do meet the requirements.
· FinaIIV.it is important to interview those who have passed the test and make the final decision who is the most competent applicant for the job.
C://Customer Relations:how to deal with customer complaints effectively
Suggested Ideas:
· First.it is important to make the staff realize and accept the concept that customers are the God and they are always right.
· Secondly,it is important to provide the staff with necessary training to teach them how to deal with customer complaints effectively.This training program may include training in the following aspects:how to respond to customer complaints politely;how to listen to customer complaints patiently with-out showing any impatience;how to interact with complaining customers in a professional way;how to make them feel that their complaints have been received with appreciation and will be dealt with in their favor;how to make use of the internal system to deal with customer complaints effectively.
· Thirdly.it is important to set up an internal system for dealing with customer complaints effectivelY.
This system may include the following:
——having a customer hot line especially for receiving customer complaints.
——havina a section on the company website for customers to post their complaints.
——assigning a special team whose main responsibility is to deal with customer complainls received through the hot line or emails or letters and faxes.
——havina a requirement that all customer complaints must be responded to within 3 days.
——keeping a record of all customer complaints and how these complaints have been dealt with and by whom.
——writjng an annual report to summarize what kinds of complaints have been made by customers,how they have been dealt with.what is the most effective way for dealing with customer complaints.who has/have done a good job in dealing with customer complaints effectively,how to improve work in this respect.

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