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[多选题] 矿井瓦斯监控测定前的准备有哪些?
A. 药品性能检查
B. 气路系统检查
C. 光路系统检查
D. 清洗空气室

热门试题:

[判断题] 在整流电路中,每个二极管所承受的反向耐压指的是有效值。( )
A.正确
B.错误
[单项选择]水肿伴痛风的患者禁用 ()
A. 螺内酯
B. 呋塞米
C. 阿米洛利
D. 乙酰唑胺
E. 氢氯噻嗪
[多选题]收费操作准确性稽核应包括收费人员在哪些业务操作上的准确性?
A.A.车牌录入
B.B.车型录入
C.C.通行费收取
D.D.通行交易信息记录
[判断题]在变电站内使用起重机械时,接地线截面不得小于6mm2。
A.正确
B.错误
[单选题] 旅客列车中乘坐旅客的车辆,与机车、货车相连接的客车端门及编挂在列车尾部的客车后端门须( )
A.打开
B.加锁
C.拆除
D.随意开关
[判断题]电弧灼伤发生在误操作或人体过分接近高压带电体而产生电弧放电时,这时高温电弧将如同火焰一样把皮肤烧伤。
A.正确
B.错误
[单项选择]{{B}}C{{/B}}
Pepys and his wife Jane had asked some friends to dinner on Sunday, September 2nd, 1666.They were up very late on the Saturday evening, getting everything ready for the next day, and while they were busy they saw the glow(微弱的光) of a fire start in the sky. By 3 o’clock on the Sunday morning, its glow had become so bright that Jane woke her husband to watch it. Pepys slipped on his dressing-gown and went to the window to watch it. It seemed fairly far away, and after a time he went back to bed. When he got up in the morning, it looked, though the fire was dying down, as though he could still see some flames. So he set to work to tidy his room and put his things back where he wanted them.
While he was doing this, Jane came in to say that she had heard the fire was a bad one; hundreds of houses had been burned down in the night and the
A. to be wearing
B. to be pushing
C. to take off
D. to put on
[多选题]造成职工伤亡事故有下列原因之一的,应追究有关负责人或直接责任人的责任()
A.对违章指挥、违章作业行为熟视无睹,不加以制止的
B.擅自允许不具有相应资质等级或未办理相关手续的单位、个人进场施工作业的
C.不按规定提报项目施工安全技术措施方案,擅自开工的
D.对员工未进行安全教育、培训的
[简答题]启动离心泵操作规程?
[多项选择]人民检察院发现不起诉决定确有错误,符合起诉条件的,应当( )
A. 报请上一级人民检察院决定
B. 撤销不起诉决定,提起公诉
C. 要求侦查机关重新立案侦查
D. 告知被害人自行提起诉讼
[单选题]动车运用所内供断电时______ 或分控柜出现故障时执行“手动(近端)操作”
A.安全联锁系统
B.安全监控系统
C.安全断电系统
D.安全环路系统
[单项选择]

After a run of several thousand years, it is entirely fitting that 2000 will be marked as the year the tide turned against taxation. Clay tablets recall the taxes of Hammurabi in the Babylon of 2000BC, but the practice is certainly older. People in power have always tried to divert some of the proceeds of economic activity in their own direction. Lords took feudal dues from their vassals; landowners took tolls from merchants; gangsters took protection money from small businesses; governments took taxes from their citizens. Despite the different names, the principle has remained constant: those who do not produce take resources from those who do, and spend it on altogether different things.
The tide is turning because of the convergence of several factors, in the first place, taxes are becoming harder to collect. Capital is more mobile than ever, and inclined to fly from places that tax to places that do not. Governments do not move their boundaries and jurisdictions as ra
A. is in provident accounts
B. is privatization of companies
C. is in individual pension plans which are replacing government pensions
D. is the increased tax on personal investment

[单选题] 在非防汛期间水库库容应由水电站负责统计并上报,并负责向所属调控机构提出水库运用计划。
A.省级调控机构
B.所属调控机构
C.网级调控机构
D.地区调控机构
[简答题]如何装设和拆除接地线?
[填空题]The author wrote this article in a satirical way, which was very thought-provoking.


[单选题]采用了多相多重斩波电路,可使电路( )。
A.对输入侧滤波器和输出侧平波电抗器的要求降低
B.对输入侧平波电抗器和输出侧滤波器的要求降低
C.对输入侧电容滤波器和输出侧平波电抗器的要求降低
D.对输入侧平波电抗器和输出侧电容滤波器的要求降低
[单选题] 证券交易内幕信息的知情人和非法获取内幕信息的人,在内幕信息公开前,( )该公司的证券。
A. 不得买入,但可以卖出
B. 可以公开买卖
C. 不得买卖
D. 可以买卖也可以不买卖
[判断题]解钩时,如车钩不能正常分离,应尝试多次按压解钩按钮( )
A.正确
B.错误
[不定项选择题]根据GB18598—2019《危险废物填埋污染控制标准》,危险废物填埋场适用范围,下列说法正确的有().
A.本标准适用于生态环境主管部门对危险废物填埋场环境污染防治的监督管理。
B.现有危险废物填埋场的入场要求需按照本标准执行
C.本标准不适用于放射性废物的处置
D.本标准不适用于突发事故产生危险废物的临时处置。
[单项选择]患者,女,56岁,近2年来发现外阴右侧有一肿块,瘙痒,有时疼痛,搔抓后破溃,有血性分泌物,查体可见右侧大阴唇中段有一硬结约3cm×2cm×2cm,基底宽,不活动,腹股沟淋巴结未触及。此患者应选择的治疗方案为()。
A. 放射治疗
B. 外阴广泛切除及双侧腹股沟、盆腔淋巴结清扫术
C. 单纯外阴切除
D. 化疗
E. 放疗+化疗
[单选题]管道焊接V型坡口的角度应是60°~( )。
A.62.5°
B.65°
C.67.5°
D.70°
[多选题]电力工作人员必须具备下列条件方能参加作业:()
A.经医生诊断无妨碍从事电力工作的病症
B.具备必要的电力专业知识,熟悉《铁路电力安全工作规程》有关内容,并经考试合格
C.应会触电急救法
D.以上都对
[判断题]万用表用毕后,应将'选择开关'拨到电阻挡位上,防止两笔短接消耗表内电池。
A.正确
B.错误
[单选题]下面各选项都是心理测验的简写,其中不属于人格测验的是
A.EPQ
B.16PF
C.CRT
D.MMPI
[判断题]专责监护人临时离开时,应通知被监护人员停止工作或离开工作现场,待专责监护人回来后方可恢复工作。
A.正确
B.错误
[简答题]集中联锁以外的脱轨器及引向安全线或避难线的道岔,设( )表示器。
[单项选择]技术交底书由承包单位的技术人员编制,并经()批准实施,未经批准不得使用。
A. 总工程师
B. 专业监理工程师
C. 项目经理
D. 建设单位项目负责人
[单选题]在风力( )级及以上、雨雪天,焊接或切割应采取防风、防雨雪的措施。
A.4
B.5
C.6
D.7
[判断题]在飞机上有旅客的情况下,合格证持有人不得允许任何人把氧气分配设备从充满氧气的氧气瓶上拆开或者接上。
A.正确
B.错误
[单选题]题干:某初产妇有规律宫缩,宫颈管消
失,宫颈口扩张2cm,先露部为头,已至S-1,
胎心率为142次/分。
此时该产妇处于
A.临产前期
B.一产程
C.二产程
D.待产时期
E.三产程
[填空题]Adults are getting smarter about how smart babies are. Not long ago, researchers learned that 4-day-olds could understand (36) and subtraction. Now, British research (37) Graham Schafer has discovered that infants can learn words for uncommon things long before they can speak. He found that 9-month-old infants could be taught through repeated show-and-tell, to (38) the names of objects that were foreign to them, a result that (39) in some ways the received (40) that, apart from learning to (41) things common to their daily lives, children don’t begin to build vocabulary until well into their second year. "It’s no secret that children learn words, but the words they tend to know are words linked to (42) situations in the home, "explains Schafer." This is the first demonstration that we can choose what words the children will learn and that they can (43) them with an unfamiliar voice giving instructio
[单项选择]多台自行式铲运机联合作业时,左右之间的距离不小于()。
A. 0.5m
B. 1m
C. 1.5m
D. 2m
[单选题]To achieve fluency, when should correction be conducted?
A.After class.
B.The moment error occurs.
C.At the summary stage of the activity.
D.During the course of the communication.
[多选题](1.0分) 题号:637 难度:中 第4章关于我国少数民族论述正确的是( )
A.在55个少数民族当中,壮族人口最多
B.云南是中国少数民族最多的省份
C.我国少数民族大多集聚在西北、西南、东北等边疆地区
D.每一个少数民族都有自己的独特的文字
[单选题]_______是由胶凝材料、细骨料和水等材料按适当比例配制而成的。
A.混凝土
B.砂浆
C.钢筋混凝土
D.三合土
[判断题]使用中发生卡链情况,应将重物放下后方可检修。
A.正确
B.错误
[简答题]现代教育技术的本质特征和内涵是什么?
[判断题]安全帽使用时,应将下颏带系好,防止工作中前倾后仰或其他原因造成滑落。
A.正确
B.错误
[单项选择]空气冷却器冷媒温升宜采用( )。
A. 2~6℃C
B. 5~10℃
C. 3~6℃
D. 4~10℃

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