热门试题:
[单选题]对于查验记录良好的车辆应随着信用机制的建立逐步()提高查验效率。
A.增加信用度
B.增加查验频率
C.减少查验频率
D.减少预约率
[多选题]高处作业的平台、走道、斜道等应装设()。
A.不低于1.2m高的护栏
B.180mm高的挡脚板
C.不低于1.0m高的护栏
D.120mm高的挡脚板
[单选题]一支密闭的玻璃管中存在着真空度,下面那个说法是正确的( )。
A.管内的相对压力为正值
B.管内的绝对压力比大气压力大
C.管内的绝对压力比大气压力小
D.管内的相对压力等于零
[判断题]信号机设在列车运行方向的左侧或其所属线路的中心线上空。
A.正确
B.错误
[单选题]在高频阻波器交接验收中,保护元件试验将保护元件与主线圈、()断开进行试验。
A.副线圈
B.调谐装置
C.接地端
D.以上都不对
[单项选择]能分泌生长激素的细胞是()。
A. 下丘脑的视上核
B. 腺垂体的嗜碱性细胞
C. 腺垂体的嗜酸性细胞
D. 下丘脑的室旁核
E. 神经垂体
[单选题]制备倒凹是为了
A. 获得良好的抗力形
B. 便于垫底
C. 便于充填
D. 获得良好的固位形
E. 便于放置盖髓剂
[填空题]下列程序段的执行结果为 【14】
K=0
For J=1 To 2
For I=1 To 3
K=I+1
Next I
For I=1 To 7
K=K+1
Next I
Next J
Print K
[单选题]( )由专业科室负责建立,留存档案正本,安全科留存副本。隐患档案要求专人负责,专人管理,每月底动态更新。
A. Ⅰ类事故隐患
B. Ⅱ类事故隐患
C. Ⅲ类事故隐患
D. IV类事故隐患
[单选题]半径为300m的曲线,轨距应是( )。
A.1435mm
B.1440mm
C.1445mm
D.1450mm
[单项选择]Is this the air-conditioner you wish ______
A. to have repaired
B. to have repaired it
C. to have it repaired
D. to have been repaired
[单选题]自给式空气呼吸器使用期间,应注意观看压力表。气瓶压力低于( )MPa时,报警笛开始鸣叫,在鸣警开始时人员应尽快撤离危险区域。
A.A、2-3
B. B、3-5
C. C、4-6
D. D、5-7
[多项选择]下列哪种造粒方式属物理法()。
A. 半料浆法
B. 熔体法
C. 高塔造粒法
D. 团粒法
[判断题]办理电话闭塞时,补机返回,应发出电话记录号码。
A.正确
B.错误
[单选题]( )是通过指出员工表现各种行为的频率来评价员工的工作绩效。
A.综合尺度量表法
B.行为观察量表法
C.等级择一法
D.行为锚定量表法
[判断题]列车在站内以调车方式进行摘挂或转线而发生事故,定列车事故。()
A.正确
B.错误
[单选题]We found that the habitat of polar bears is disappearing ________ the ice at the North Pole is getting warm.
A.because
B.because of
C.for
D.for which
[不定项选择题]共用题干
Face Masks May Not Protect from Super-flu
1 If a super-flu strikes,face masks may not protect you.Whether widespread use of masks will help,or
harm,during the next worldwide flu outbreak is a question that researchers are studying furiously.No results
have come from their mask research yet.However,the government says people should consider wearing them
in certain situations anyway,just in case.
2 Butit's a question the public keeps asking while the governments are making preparations for the
next flu pandemic. So the Centers for Disease Control and Prevention ( CDC ) came up with(提出)prelimi-
nary guidelines(初步指导方针)." We don ' t want people wearing them everywhere,"said the CD
C. " The
overall recommendation really is to avoid exposure."
3 When that'S not possible,the guidelines say to consider wearing a simple surgical mask if you are in
one of the three following situations.First,you're healthy and can't avoid going to a' crowded place.Second,
you're sick and think you may have close contact with the healthy,such as a family member checking on
you.Third,you live with someone who'S sick and thus might be in the early stages of infection,but still need
to go out.
4 Influenza pandemic can strike when the easy-to-mutate flu virus shifts to a strain that people never
have experienced.Scientists cannot predict when the next pandemic will arrive,although concern is rising
that the Asian bird flu might trigger one if it starts spreading easily from person to person.
5 During the flu pandemic,you should protect yourself. Avoid crowds,and avoid close contact with the
sick unless you must care for someone.Why aren't masks added to this self-protection list?Because they can
help trap virus-laden(含有病毒的、充满细菌的)droplets flying through the air with a cough or sneeze.
Simple surgical masks only filter the larger droplets.Besides,the CDC is afraid masks may create a false
sense of security.Perhaps someone who should have stayed home would don an ill-fitting mask and hop on
the subway instead.
6 Nor does flu only spread through the air. Say someone covers a sneeze with his or her hand,then tou--
ches a doorknob or subway pole.If you touch that spot next and then put germy hands on your nose or
mouth,you'ye been exposed.It's harder to rub your nose while wearing a mask and so your face may get
pretty sweaty under masks.You reach under to wipe that sweat,and may transfer germs caught on the outside
of the mask straight to the nose.These are the problems face masks may create for their users.
7 Whether people should or should not use face masks still remains a question.The general public has
to wait patiently for the results of the mask research scientists are still doing.
The CDC is afraid that the public may________.
A.overuse face masks
B.deal with the mask problem seriously
C.rub their faces and noses in the subway
D.protest against the mask guidelines
E.help protect people from being attacked by a flu
F.announce the results of their mask research
[判断题]客运广播系统设备、线缆管线等的接地应符合设计要求。一般采用联合接地时,接地电阻不大于1Ω,采用单独接地时,接地电阻小于5Ω。
A.正确
B.错误
[单选题]下列各项中不属于公民个人财产的是( )。
A.公民的合法收入
B.公民的房屋、储蓄、生活用品
C.公民的住宅所占的土地
D.公民的文物、图书资料、林木、牲畜
[单选题]关于泌尿系统的解剖结构,描述错我的是( )
A.通常右肾位置略低于左肾
B.男性尿道长18~22cm左右
C.膀胱空虚时,顶部不超过耻骨联合上缘
D.一般膀胱内储存尿液300~500ml时会产生尿意
E.输尿管有三个狭窄:起始部、耻骨前弯和耻骨下弯
[简答题]《港口管理经营规定中》对港口经营的定义是什么,港口经营主要包括哪些项目?
[简答题]简述特发性血小板减少性紫癜常见的护理诊断。
[判断题]电流通过人体的局部肢体是没有危险的。( )
A.正确
B.错误
[填空题]使用劳务工前按规定签订协议,进行岗前( )培训教育,劳务工未经培训考试合格严禁使用。
[多项选择]常用的定性生产预测方法有()
A. 决策分析法
B. 时间序列法
C. 简单法
D. 市场调查法
E. 试验市场活动
[单选题]数据的去噪、清理、标引是指()。
A.查找不一致、不完整、不规范的信息
B.对于不一致、不完整、不规范的信息进行规范、完善,根据需求对数据加上新标签
C.剔除不一致、不完整、不规范的信息
D.对数据进行分级处理
[单项选择]下面关于CURB-65评分的内容,哪项不正确()
A. 年龄≥65岁
B. 尿量减少,每小时小于20ml,肌酐进行性增高
C. 新出现精神症状
D. 呼吸频率≥30次/分
E. 收缩压≤90mmHg和(或)舒张压≤60mmHg
[多选题]《高速铁路接触网运行维修规则》(铁总运[2015]362号),接触网和附加导线中用于电气连接的零件,其允许()不应小于被连接的()。
A.载流量
B.电压量
C.额定容量
D.导线
[单选题]检修人员进行操作的接、发令程序及安全要求应由()审定,并报相关部门和调度控制中心备案。
A.调度控制中心
B.设备运维管理单位
C.安监部门
D.单位主管领导
E.略
F.略
[单选题]道岔尖轨非工作边与基本轨工作边的最小距离 65mm,符合容许误差( )mm 的标准。
A.-1
B.-2
C.-3
D.-4
[判断题]智慧党建平台服务的对象包括:党支部、党员、群众
A.正确
B.错误