热门试题:
[判断题]案例50 某35kV线路检修,该区域有多条35kV线路,工作负责人安排方某监护王某检修12~15号杆,两人到达现场从12号杆开始检修,当时风力大于5级未停止作业。登杆前未认真核实线路双重名称,王某误登临近的带电杆塔。从横担处转移时,未再次核对停电线路的识别标记与双重称号,未安装个人保安线,沿着C相绝缘子下导线,专责监护人没有制止,作业中触电。
该起事故存在违章行为:作业人员登杆前未认真核对线路名称,误登带电杆塔。违反《安规》关于“登杆作业时,应核对线路名称和杆号”的规定。
A.正确
B.错误
[单项选择]
Passage Five
First, the spotted owl was threatened by logging in the Pacific Northwest. Now it’s in danger from a new enemy, the barred owl. Barred owls have been moving to the Northwest from the eastern part of the United States. Stan Sovern has studied spotted owls. Now when he calls for spotted owls, barred owls are starting to appear. Sovern threw a mouse on the ground, and a barred owl grabbed it.
Scientists have learned that spotted owls start to vanish when barred owls come. Some barred and spotted owls have mated and produced hybrid babies. One spotted owl was killed by a barred owl.
Professor Ned K. Brown of the University of California-Berkeley says, "In some areas of Washington, the barred owls moved into very dense, deep woods. The same kind of woods that are opened up, or destroyed by logging, that adversely influences the spotted owls."
Ten years have passed since the federal government began protecting the spot
A. in the northeastern United States
B. on seven million acres of public land
C. two decades ago
D. to save the barred owls
[简答题]电网发生事故时,按频率自动减负荷装置动作切除部分负荷,当电网频率恢复正常时,被切除负荷送电时的要求不正确的是()
[判断题]受电弓接触压力太小,将引起受电不良。( )
A.正确
B.错误
[单选题]本小题 1 分
低压配电设备带电操作时,使用有绝缘柄的工具,其外裸的导电部位应采取(____)措施,防止操作时相间或相对地短路。
A. 隔离
B. 屏蔽
C. 绝缘
D. 包裹
[判断题]( )烟叶收购质量监督检查只按《烤烟》(G×2635-92)文字规定开展工作就可以。
A.正确
B.错误
[单选题]电源及设备房屋环境监控系统中,机房环境监控对象包括“ ”、机房环境等。
A. 高频开关电源
B. UPS
C. 空调
D. 蓄电池组
[判断题]机场管理机构应当向当地人民政府报送运输机场规划、建设和生产运营的有关资料,接受民用航空管理部门的监督检查。
A.正确
B.错误
[单选题] 运行途中,遇列车无线调度通信设备发生故障时,列车应()报告。
A. 立即停车
B.在前方站停车
C.前方停车站
[单选题]《污水综合排放标准》(DB21/1627-2008)表1直接排放的水污染物挥发酚最高允许排放浓度为( )mg/L。
A.0.1
B.0.3
C.0.5
D.1
[填空题]车主离职,拼车人员未及时变更拼车信息,( )取消。
[多选题]电缆耐压试验前,应先对被试电缆充分放电加压端应采取措施防止;另一端应设置( )若另一端是上杆的或是开断电缆处,应派人看守。
A.A-遮栏(围栏)
B.B-悬挂警告标示牌
C.C-悬挂在此工作标示牌
D.D-脚手架
[判断题]TW-2型驼峰自动控制系统,如果发生板故障,主体窗显示不出来。
A.正确
B.错误
[简答题]锅炉房是一个较复杂的系统,由不同类型的设备和管道组成,从设备和结构方面看,可分为两个子系统,分别是什么?
[判断题]《铁路旅客运输规程》对乘坐卧铺的旅客,列车可以收取车票并予集中保管。( )
A.正确
B.错误
[单选题]Bilateral relations have entered a new stage of development both in terms of_____and breadth.
A.profundity
B.dimension
C.implication
D.innovation
[判断题]SF6气体是一种无色、无味、有毒、不可燃且透明的气体。
A.正确
B.错误
[多选题]低碳钢焊条E4303(J422)适合( )牌号钢材的焊接
A.优质碳素结构钢20号钢
B.普通低碳钢
C.碳素结构钢Q235
D.高强度低碳钢
[多选题]下列浮选机中,属于气体析出式浮选机的是( )。
A.浮选柱
B.真空浮选机
C.旋流式浮选机
D.喷射浮选机
E.自吸式机械搅拌式浮选机
[判断题]使用、储存、运输氯气的从业人员,必须接受有关预防和处置氯气泄漏、中毒等知识培训,考试后持证上岗。
[单选题]中国甲公司从法国乙公司进口了一批货物, 依《联合国国际货物销售合同公约》,关于货物检验和交货不符合同约定的问题,下列说法正确的是哪项?( )
A.货物不符合同情形在风险转移时已经存在,在风险转移后才显现的,乙公司应当承担责任
B.甲公司在任何时间发现货物不符合同均可要求卖方赔偿
C.甲公司有权依自己习惯的时间安排货物的检验
D.如甲公司须再发运货物,则检验应在发运前进行
[单选题]B细胞的阴性选择发生于
A.浆细胞
B.晚期祖B细胞
C.不成熟B细胞
D.早期祖B细胞
E.成熟B细胞
[单项选择]有学者指出:“古来帝王,由秦始皇至清代宣统,正统偏安者共二百余人,真正懂得国家政体并善以此治国,王而不藩者,不过秦皇、汉武、宋太祖、清圣祖(康熙)四人而已。”这里的“国家政体”指()
A. 宗法分封制
B. 王位世袭制
C. 郡县制
D. 中央集权制
[填空题]To begin with, we are witnessing a (32) explosion of "solos" — people who live (33) , outside a family altogether. Between 1970 and 1978, the number of persons aged fourteen (34) thirty-four who lived alone nearly tripled in the United State — (35) from 1.5 million to 4.3 million. Today, (36) fifth of all households in the United States consists (37) a living solo. (38) are all these people losers or loners, forced into the solo life. Many deliberately choose it, at least for a time. Says a legislative aide to a Seattle councilwoman, "I (39) consider marriage if the right person came (40) , but I would not give up my career (41) it."
Looking at an older slice of the population, we find a large number of formerly married people, living on their (42) and, in many eases, decidedly liking it. The growth of such groups (43) created a flourishing "singles" culture and a much pu
[判断题]车钩钩尾部分主要作用是实现车钩与缓冲部分的连接作用。( )
A.正确
B.错误
[判断题]道岔转换实行单一联系,杜绝多头指挥。
A.正确
B.错误
[多选题]用人单位应当采取的职业病防治管理措施包括( )
A.制订职业病防治计划实施方案
B.建立、健全职业卫生档案和劳动者健康监护档案
C.建立、健全工作场所职业病危害因素监测及评价制度
D.建立、健全职业病危害事故应急救援预案
[单选题]曲柄摇杆机构中,曲柄的长度( )。
A.大于摇杆长度
B.脆性
C.最短
D.大于连杆长度
[判断题]1211灭火器是干粉灭火器。
A.正确
B.错误
[单选题]氧气瓶在使用中,距明火不应( )。
A.大于10m
B.大于5m
C.小于10m
D.小于20m
[单选题]消防机构应当自作出火灾事故认定书之日起( )日内送达当事人。
A.一
B.三
C.五
D.七
[多选题]下面欧元面额中,()面额纸币采用了光变油墨印刷技术。
A.20欧元
B.50欧元
C.100欧元
D.200欧元
E.500欧元
[多项选择]以下何种措施不利于改善遵医行为()
A. 改善医患关系,加强医患沟通
B. 缩短医生接诊时间
C. 开展病人小组活动
D. 医生对病人的每次行为指导全面而详尽
E. 简化药物处方