热门试题:
[多选题]1.(多选题)转子发热过高排故方法
A.检查是否有一相断路并接好线
B.检查接头接触是否良好并接好
C.检查控制器触头接触是否良好
D.用电笔或指示灯检查有无电压。
E.检查钢丝绳粗细的选择是否符合要求
F.检查主回路中是否有接地或短路现象
[单选题]直接接入高压配电网的分布式电源的启停应执行()的指令。
A.变电运维部门
B.电网调度控制中心
C.营销部门
D.线路运维部门
E.略
F.略
[判断题]德育过程主要矛盾是社会通过教师向学生提出的道德要求与学生已有品德水平之间的矛盾。
A.正确
B.错误
[判断题]科技领域安全是国家安全的重要组成部分。
A.正确
B.错误
[判断题]W相电压互感器二次侧断线,将造成三相三线有功电能表可能正向计量、反向计量或不计量。( )
A.正确
B.错误
[单选题]( )生产安全事故,是指造成3人以下轻伤,或者1000元以上10万元以下直接经济损失的事故。
A.一般A级
B.一般B级
C.一般C级
D.一般D级
[单选题]直流电路在稳态时,电容可看做(___)。
A.开路
B.短路
C.置零
D.谐振
[单选题] 《施工现场临时用电安全技术规范》规定,开关箱与其控制的用电设备之间的距离不应超过( )m。
A.1
B.2
C.3
D.4
[判断题]作业标插设在距线路中心不小于3.1米处,并确保直立、牢固
A.正确
B.错误
[多选题]以下哪些安全工器具应进行试验:
A.本规程要求进行试验的安全工器具。
B.新购置和自制的安全工器具。
C.检修后或关键零部件经过更换的安全工器具。
D.对安全工器具的机械、绝缘性能发生疑问或发现缺陷时。
[单选题]消防行政处罚案件听证的“较大数额罚款”是指对个人、单位分别处以( )以上罚款,但地方立法另有规定的,从其规定。
A.二千元,一万元
B.一千元,一万元
C.二千元,五千元
D.一千元,六千元
[单选题]青岛地铁3号线交流屏进线有( )路电源。
A.1
B.2
C.3
D.4
[填空题]The author was still young because he often ran to catch the trains.
[判断题]轨道作业车影响行车安全的走行、传动、制动部件外部螺栓松动、销子脱落禁止使用。
A.正确
B.错误
[单选题]对违章携带的物品补收运费时,应本着实事求是的态度,区别不同的违章( ),妥善处理。
A.性质
B.程度
C.过程
D.情况
[单选题]阳极溶出伏安法待测物的浓度与伏安曲线中()不成正比。
A.A.峰值电流
B.B.峰值电位
C.C.峰高
D.D.电解电流极值减去残余电流
[单选题]我国规定安全电压最高是多少( )
A.A.2V
B.B.26W
C. C.38W
D.D.42V
[单选题]当起升载荷超过额定载荷时,能输出电信号,切断起升控制回路,并能发出 警报的安全装置是( )。
A.止挡装置
B.起重量限制器
C.起重力矩限制器
D.运行限位器
[单选题]First two hours,now three hours—this is how far in advance authorities are recommending people show up to catch a domestic flight,at least at some major U.S.airports with increasingly massive security lines.Americans are willing to tolerate time-consuming security protocols in return for increased safety.The crash of Egypt Air Flight 804,which terrorists may have downed over the Mediterranean Sea,provides another tragic reminder of why.But demanding too much of air travelers or providing too little security in return undermines public support for the process.And it should:Wasted time is a drag on Americans'economic and private lives,not to mention infuriating.Last year,the Transportation Security Administration(TS
A)found in a secret check that undercover investigators were able to sneak weapons—both fake and real—past airport security nearly every time they trie
D.Enhanced security measures since then,combined with a rise in airline travel due to the improving economy and low oil prices,have resulted in long waits at major airports such as Chicago's O'Hare International.It is not yet clear how much more effective airline security has become—but the lines are obvious.Part of the issue is that the government did not anticipate the steep increase in airline travel,so the TSA is now rushing to get new screeners on the line.Part of the issue is that airports have only so much room for screening lanes.Another factor may be that more people are trying to overpack their carry-on bags to avoid checked-baggage fees,though the airlines strongly dispute this.There is one step the TSA could take that would not require remodeling airports or rushing to hire:Enroll more people in the PreCheck program.PreCheck is supposed to be a win-win for travelers and the TS
A.Passengers who pass a background check are eligible to use expedited screening lanes.This allows the TSA to focus on travelers who are higher risk,saving time for everyone involve
D.TSA wants to enroll 25 million people in PreCheck.It has not gotten anywhere close to that,and one big reason is sticker shock:Passengers must pay$85 every five years to process their background checks.Since the beginning,this price tag has been PreCheck's fatal flaw.Upcoming reforms might bring the price to a more reasonable level.But Congress should look into doing so directly,by helping to finance PreCheck enrollment or to cut costs in other ways.The TSA cannot continue diverting resources into underused PreCheck lanes while most of the traveling public suffers in unnecessary lines.It is long past time to make the program work.
The word“expedited”(Liner 4,Par
A.5)is closet in meaning to____
A.quieter.
B.cheaper.
C.wider.
D.faster.
[单选题]搭设跨越架,应事先与被跨越设施的产权单位取得联系,必要时应请其派员监督检查。( )
A.A.正确
B.B.错误
[多选题]“四不放过”原则是指发生事故后,要做到( )
A.事故原因没查清不放过
B.当事人未受到处理不放过
C.群众未受到教育不放过
D.整改措施未落实不放过
[判断题]安全帽的主要作用防止物料下落击中头部及行进中碰撞突出物而受伤。
A.正确
B.错误
[单项选择]下列有关气雾剂的叙述,错误的是()
A. 抛射剂在耐压的容器中产生压力
B. 抛射剂是气雾剂中药物的溶剂
C. 抛射剂是气雾剂中药物的稀释剂
D. 抛射剂是一类高沸点物质
E. 抛射剂在常温下蒸气压大于大气压
[判断题]( ) 按《t油田井下作业井控实施细则》规定,柴油机排气管、锅炉的烟囱不破不漏,有防火罩。进入井场的机具、车辆应戴有效的防火罩。钻台下面与井口周围严禁有易燃易爆物品。
A.正确
B.错误
[单项选择]接收端检出有差错,设法通知发送端重发,直到正确为止,这种差错控制方法称为 ________。
A. 前向纠错
B. 反馈检测
C. 冗余检验
D. 自动请求重发
[单选题]张某为瓦斯发电厂安全总监,李某为安全检查员,在李某向张某报告发现存在甲烷传感器滞后、断线、位置不当等安全问题后,张某仍然强令工人在现场作业,并故意破坏甲烷储存设施,张某构成的罪名是()。
A.故意杀人罪
B.重大劳动安全事故罪
C.以危险方法危害公共安全罪
[简答题] Water Resources
1. 水资源对我们非常重要。
2. 水资源很匮乏。
3. 我们该如何做。
[填空题]重要特性虽然不是关键特性,但如有故障可能导致()不能完成所要求使命的特性。
[多选题]下列选项中属于社会救助的对象有哪些,
A.相对贫困的城镇家庭
B.孤寡老人
C.重病的无劳动能力者
D.孤儿
[单选题]和谐1、和谐2、和谐3、和谐5型车每8辆编组配备防护网()套。
A.2
B.4
C.8
D.16
[单选题]关于人民警察的义务,下列做法不正确的是( )
A.民警周某街道小学生溺水的警情,立即出警救助
B.民警窦某对请求调解经济纠纷的当事人,告知其向法院提起民事诉讼
C.民警叶某对没有管辖权的报案(故意伤害)不予受案,告知其向有管辖权的公安机关报案
D.民警潘某在下班途中,遇有暴恐分子实施暴恐活动,立即参与处置
[单项选择]{{B}}Text 3{{/B}}
It is difficult to say exactly how the
music we call "rock" or "rock and roll" began. Its roots go back to many
different countries and many different kinds of music and musicians.
Rock music developed mainly from the interaction of black African and
white European music. The Europeans and the African slaves who came to America
during the seventeenth century each had their own different kinds of music.
Black Africans used heavy drumbeats, a rough singing voice, and the calling of a
melody and answer of a chorus. The white Europeans, mostly English and Scots,
used a stronger melody, a less heavy beat, and instruments such as guitars,
horns, and fiddles. The history of rock and roll is the history of how rock
evolved from these two traditions. From the seventeenth to the
twentieth century, musicians in the southern United A. the role he played in rock and roll B. how he became a teenage idol C. why he went downhill D. how he expressed the heart and soul of rock and roll
[多选题]内部人才市场全面传递人才需求信息,以实施( )等市场化运作方式组建员工全方位流动体系。 A.组织调配 B.内部公开竞聘 C.双向选择 D.支持个人岗位调动申请
[填空题] 在轨道电路分路不良区段,不能使用信号集中设备锁闭进路、开放信号时,有关行车按( )作业方式办理。
[判断题]配电工作票的有效期,以批准的停电时间为限。 A.正确 B.错误
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