题目详情
当前位置:首页 > 职业培训考试
题目详情:

[判断题]二次设备箱体应可靠接地且接地电阻应满足要求。
A.正确
B.错误

热门试题:

[填空题]

矿井下使用容气压缩机时,容气压缩机中空气的最高温度至少比容气压缩机润滑油的闪点低()。


[单项选择]最早能反映急性心肌梗死发生的酶学检查是()
A. 肌酶激酶(CK)
B. 肌钙蛋白I或T
C. CK-MB
D. 乳酸脱氢酶(LDH)
E. 天门冬氨酸氨基转移酶(AST)
[简答题]为什么引入光交换?光交换的种类有哪些?
[单选题]一旦逃离危险区,受灾者就必须留在安全区域并及时向救助人员反映火场情况,即使发现还有人没撤出来,也不能贸然返回。正确的做法是,由()营救。
A.自己冲过去
B.消防人员组织
C.组织青壮年
D.等待救援
[多选题]党的十八大以来,党中央加强对国家安全工作的集中统一领导,( ),有效应对了一系列重大风险挑战,保持了我国国家安全大局稳定。
A.把坚持总体国家安全观纳入坚持和发展中国特色社会主义基本方略
B.从全局和战略高度对国家安全作出一系列重大决策部署
C.强化国家安全工作顶层设计
D.完善各重要领域国家安全政策
E.健全国家安全法律法规
[判断题]死区在仪表领域又称仪表的不灵敏区,是输入量的变化不致引起该仪表输出量有任何可察觉的变化的有限区间。
A.正确
B.错误
[单项选择]多食肉类,需补充:()
A. 维生素B1
B. 维生素B7
C. 维生素B5
D. 维生素B6
[判断题]变电站综合自动化系统应当随时在线监测电网运行参数,当设备发生异常时,只需要自动报警即可。
A.正确
B.错误
[单选题]提升装置装设的过速保护装置是当提升速度超过最大速度( )%时,必须能自动断电,并能使保险闸发生作用。
A.5
B.10
C.15
[单选题]进站信号机外制动距离内进站方向的坡度是()坡度
A.换算
B.平均
C.计算
D.实际
[单选题]课程的组织方式或设计课程的种类指的是 。
A.课程类型
B.教学计划
C.教学大纲
D.教科书
[单项选择]属于可疑外汇非现金交易情形的有()种。
A. 18 
B. 19 
C. 20 
D. 22
[判断题]井下有危险的工作地点必须设置灾害事故避灾路线。
A.正确
B.错误
[单项选择]以三偏征为特征的动脉闭塞是()。
A. 颈内动脉闭塞
B. 主干闭塞
C. 皮层支闭塞
D. 深穿支闭塞
E. 大脑前动脉闭塞
[单选题]( )应根据需要适当扩大保护区。
A.居民棚户区火灾现场
B.高速公路上的汽车火灾现场
C.自燃引起的火灾现场
D.起火点位置暂不能确定的火灾现场
[判断题]未完成的作业或保养项目,可先行将作业保养台账填写完整。( )
A.正确
B.错误
[不定项选择题]共用题干 Rainmaking

1 The idea of rainmaking is almost as old as man,but it was not until 1946 that man succeeded in
making rain.In ancient times,rainmakers had claimed to bring rain by many methods:dancing,singing,
killing animals(including humans).
2 For a long time,men have understood where rain comes from.Water from the surface of oceans and
lakes becomes part of the air,where it forms clouds from which rain falls.But exactly what starts the forma-
tion of raindrops was not known until quite recently.A man named John Aitken proved that drops of water
gather around tiny bits of dust or other matter. The centers of the drops are so small that the human eye can-
not see them.Without such centers,it seems raindrops do not form.
3 During World War Ⅱ,Dr. Irving Langmir,and his assistant Schaefer,were hired by the General
Electric Company to study how and why ice forms on the wings of airplanes.They went to a mountain in New
Hampshire,where snowstorms are common and cold winds blow. They were surprised to find that often the
temperature of the clouds surrounding them was far below the freezing point,and yet ice did not form in the
clouds.
4 After the War,Schaefer experimented with a machine that created cold,moist air similar to the air
found in clouds.To imitate the moist air of a cloud.Schaefer would breathe into the machine.Then he
would drop into the freezer a bit of powder,sugar,or some other substance.For weeks and months he tried
everything he could imagine.Nothing happened.No crystals of ice were formed.None of the substances
would serve as the center of a snow crystal or raindrops.
5 One July morning,Schaefer was dropping in bits of various substances and watching the unsuccessful
results.Finally,a friend suggested that they go to eat lunch and Schaefer went with him.As usual,he left
the cover of the freezer up,since cold air sinks and would not escape from the box.
6 Returning from lunch,Schaefer found that the temperature of the freezer had risen to a point higher
than that required for ice crystals to remain solid.There were two choices now.He could close the cover and
wait for the freezer itself to lower the air temperature,or he could make the process occur faster by adding dry
ice a gas in solid form that is very,very cold.He chose the latter plan.As he dropped the steaming white
dry ice into the freezer,he happened to breathe out a large amount of air. And there,before his eyes,it
happened ! He had made ice crystals,not by adding centers to the moisture,but by cooling the breath so
much that the liquid had to form crystals!Then he began to blow his breath into the freezer and drop large
pieces of dry ice through it to create crystals which became a tiny snowstorm falling slowly to the floor of his
laboratory.
7 After planning carefully,Schaefer made an experiment by dropping dry ice from his plane to the
clouds below him.As was expected,snow formed and fell from the bottom of the cloud.Schaefer succeeded.
He made history. Paragraph 6__________
A.Langmir and Schaefer's Work for the GE Company
B.Langmir and Schaefer's Discovery of Rain-forming
C.Men'S Knowledge of Rain-forming
D.Schaefer'S Several Unsuccessful Experiments
E.Schaefer's Discovery by Accident
F.Langmir and Schaefer'S Successful Cooperation
[判断题]制动管向工作风缸和降压风缸充气是通过分配阀的副阀部实现的。(  )
A.正确
B.错误
[多选题]公务员辞去公职,应当向任免机关提出书面申请。对于任免机关的审批期限,下列哪些选项是正确的?
A.三十日内
B.四十五日内
C.其中对领导成员辞去公职的申请,应当自接到申请之日起六十日内
D.其中对领导成员辞去公职的申请,应当自接到申请之日起九十日内
[单选题].物质沸点较高且又是热敏性液态混合物,应采用( )精馏进行分离。
A.加压
B.共沸
C.减压
D.萃取
[单项选择]下列哪个语句查出雇员表(employees)里的雇员名字(ename)是‘SMITH’的信息,并且给雇员名字(ename)列定义一个别名Name()。
A. select employeesno,ename Name,job from employees where ename=‘SMITH’
B. select employeesno,ename ‘Name’,job from employees where ename=SMITH
C. select employeesno,ename “Name”,job from employees where ename=‘SMITH’
D. select employeesno,ename ‘Name’,job frome mployees wheree name=‘SMITH’
[单选题] 一般件串件,应在《串件审理单》(生表-17A)上填写串件原因,调度组长、检验组长签字、生产单位领导签字;( )批准;军代表审签后方可实施串件。
A.总师办领导
B.技术工程部领导
C.质量管理部领导
D.生产部/技安环保部领导
[单选题]按照《国家电网有限公司 安全生产巡查工作规定(试行)》的巡查工作程序规定:巡查工作结束后,巡查组成员提交巡查报告经省公司( )审定后,向被巡查单位通报反馈意见,被巡查单位收到巡查报告后,于15日内将整改方案报送省公司( )。
A.党委会
B.安监部
C.安委会
D.总经理办公会
[单选题]发布电闭作业命令后,车站人员进轨行区办理进路、专业人员进轨行区处理故障由( )负责把控和具体安排。
A.值班站长
B.值班主任
C.车站
D.行调
[单项选择]寒冷 对于 ( ) 相当于 黑暗 对于 ( )
A. 冰箱——电灯
B. 被子——蜡烛
C. 孤单——恐惧
D. 舒适——光明
[单选题]沙丁胺醇平喘作用的主要机制是( )
A.抑制腺苷酸环化酶,降低支气管平滑肌细胞内cAMP浓度
B.激活腺苷酸环化酶,增加支气管平滑肌细胞内cAMP浓度
C.直接松弛支气管平滑肌
D.激活鸟苷酸环化酶,增加支气管平滑肌细胞内cGMP浓度
E.抑制鸟苷酸环化酶,降低支气管平滑肌细胞内cGMP浓度
[多选题]下列有关行政许可的监察监督,说法正确的是?()
A.行政机关实施监督检查,可以决定责令被许可人停止营业接受检查
B.行政机关发现直接关系人身健康的重要设备存在安全隐患的,应当责令限期改正
C.被许可人未依法履行开发利用自然资源义务的,行政机关应当责令限期改正
D.直接关系公共利益的特定行业的市场准入行政许可的被许可人,不履行普遍服务义务的,行政机关应当责令限期改正
[判断题] 手抬机动泵功率不足时可改出一支水枪;手抬机动泵应与消防车同时启动,消防车应缓慢加压,供水压力不能小于手抬泵额定功率。( )
A.正确
B.错误
[不定项选择题]心动周期中,主动脉瓣关闭见于(  )。
A.等容收缩期末
B.快速射血期末
C.减慢射血期末
D.等容舒张期末
[单选题]配合公差的数值愈小,则相互配合的孔、轴的公差等级( )
A.愈高
B.愈低
C.过盈大
D.间隙大
[判断题]曲线内侧钢轨缩短量与曲线半径及圆曲线和缓和曲线长度有关。( )
A.正确
B.错误
[单选题]装置液力透平开车时必须打开(  )来灌泵。
A.A、 入口阀
B.B、 调节阀
C.C、 安全阀
D.D、 出口阀
[判断题] 一类质量问题是指在采集终端质量监督中发现供应商某一供货批次采集终端产品由于制造工艺、元器件质量、软件程序缺陷、测试试验等原因导致批量质量隐患或故障。
A.正确
B.错误
[单选题]下列各项中,属于反映经营成果的会计要素的是()。
A.资产
B.负债
C.收入
D.所有者权益
[单项选择]四妙勇安汤的组成是()。
A. 玄参、甘草、当归、金银花
B. 陈皮、甘草、当归、金银花
C. 连翘、蒲公英、地丁、金银花
D. 野菊花、蒲公英、地丁,金银花
E. 赤芍、苦参、甘草、金银花
[单项选择]曲轴轴线状态图的复杂作图法是()作图。
A. 从左向右
B. 从右向左
C. 从中间向两端
D. A或B
[单选题]在泥浆罐内作业装设的临时照明灯电压不应超过( )V
A.12
B.24
C.36
D.48
[多选题]选择预热温度主要应依据( )。
A.母材的碳当量
B.母材板厚
C.焊接热输入
D.填充材料氢含量
[单选题]男性,32岁,十二指肠溃疡病史1年,口服药物治疗,12小时前大量呕吐鲜血就诊,血压为80/50mmHg,输血1000ml仍有波动,查体:贫血貌,剑突下压痛,腹肌软,此患者最适宜的治疗方法是
A.快速补液、输血
B.静脉注射止血剂
C.纤维胃镜电凝止血
D.急诊剖腹手术
E.应用血管活性药物
[多选题]B737-800型飞机陆地撤离时,2号乘务员需携带的物品有
A.手电筒
B.急救箱
C.卫生防疫包
D.扩音器

我来回答:

购买搜题卡查看答案
[会员特权] 开通VIP, 查看 全部题目答案
[会员特权] 享免全部广告特权
推荐91天
¥36.8
¥80元
31天
¥20.8
¥40元
365天
¥88.8
¥188元
请选择支付方式
  • 微信支付
  • 支付宝支付
点击支付即表示同意并接受了《购买须知》
立即支付 系统将自动为您注册账号
请使用微信扫码支付

订单号:

截图扫码使用小程序[完全免费查看答案]
请不要关闭本页面,支付完成后请点击【支付完成】按钮
恭喜您,购买搜题卡成功
重要提示:请拍照或截图保存账号密码!
我要搜题网官网:https://www.woyaosouti.com
我已记住账号密码