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[多选题]2230 10kV变(配)电所的常用保护有()。
A.过流保护
B.速断保护
C.距离保护
D.熔断器保护
E.零序保护

热门试题:

[单选题]危险化学品运输车辆限制通行的区域,由( )人民政府公安机关划定,并设置明显的标志。
A. 省级
B. 市级
C.地级
D.县级
[单项选择]双稳态触发脉冲过窄,将会使电路出现()。
A. 空翻
B. 正常翻转
C. 触发而不翻转
D. 随机性乱翻转
[单项选择]在航次租船方式下,货物装卸费由船舶出租人还是承租人承担取决于合同的具体规定。下列()规定表明船舶出租人不承担货物装卸费用。
A. FILO
B. FIOST
C. LIFO
D. LINER TERM
[单选题][T]B-A-B-A-025 3 2 3
最高运行速度为140km/h的旅客列车(动车组列车除外),紧急制动距离限值为( )m。
A.600
B.800
C.1100
D.1400
[判断题]机器保护罩的主要作用是使机器较为美观。()
A.正确
B.错误
[判断题]润滑脂在使用中起到润滑和防腐的作用。 ( )
A.正确
B.错误
[单项选择]

Most children with healthy appetites are ready to eat almost anything that is offered them and a child rarely dislikes food (1) it is badly cooked. The (2) a meal is cooked and served is most important and an (3) served meal will, often improve a child’ s appetite. Never ask a child (4) he likes or dislike a food and never (5) likes and dislikes in front of him or allow (6) else to do so. If the father says he hates fat meat or the mother (7) vegetables in the child’ s hearing he is (8) to copy this procedure. Take it (9) granted that he likes everything and he probably (10) . Nothing healthful should be omitted from the meal because of a (11) dislike. At meal times it is a good (12) to give a child a small portion and let him (13) back for a second helping rather than give him as (14) as he is likely to eat all at once. Do not talk too much to the child (15) meal
A. adequately
B. urgently
C. attractively
D. eagerly

[多项选择]患者男,30岁,车祸致脑外伤昏迷30min,清醒5h后又转入昏迷并伴右侧瞳孔散大,左侧肢体瘫痪。经术前检查,3h后入手术室。入室时仍然昏迷,R10次/min,BP150/95mmHg,HR56次/min,室性期前收缩4次/min。符合该患者病理生理改变的是()。
A. 原发性呼吸性酸中毒
B. 原发性呼吸性碱中毒
C. 代偿性呼吸性酸中毒
D. 代偿性呼吸性碱中毒
E. 原发性代谢性酸中毒
F. 原发性代谢性碱中毒
G. 代偿性代谢性酸中毒
H. 代偿性代谢性碱中毒
[填空题]电气化区段内,禁止任何人攀登到(  )或车辆装载的货物。
[单选题]电网运行实行( )。
A.统一调度,统一管理
B.统一调度,分级管理
C.分级调度,统一管理
D.分级调度,分级管理
[单选题]因有特殊情况需要进行电焊、气焊等明火作业的,动火部门和人员应当按照单位的用火管理制度( ),落实(  ),在确认无火灾、无爆炸危险后方可动火施工。   
A.清理现场易燃物;动火施工人员
B.做好各项准备;现场指挥
C.办理审批手续;现场监护人
D.向部门经理报告;防火措施 
[判断题]暂停期满或每一日历年内累计暂停用电时间超过三个月者,不论用户是否申请恢复用电,供电企业须从期满之日起,按合同约定的容量计收其基本电费。
A.正确
B.错误
[单选题]当耐张长度在800m及以下时,一个耐张段内供电线接头的总数量的限界值为(  )
A.0个
B.1个
C.2个
D.4个
[填空题]
Education is a long process that not only provides us with basic skills such as literacy and numeracy, but is also essential in shaping our future lives. From the moment we enter{{U}} (47) {{/U}}as small children, and as we progress through primary and secondary education, we are laying the foundation for the life ahead of us. We must{{U}} (48) {{/U}}ourselves to work hard so that we can pass exams and gain the qualifications we will need to{{U}} (49) {{/U}}a good job. We must also acquire{{U}} (50) {{/U}}life skills so that we can fit in and work with those around us. And of course health education helps us to understand how we can stay{{U}} (51) {{/U}}and healthy.
For most people, this process ends when they are in their mid-to-late teens. For others, however, it is the beginning of a(n){{U}} (52) {{/U}}of learning. After they finish school, many progress to{{U}} (53) {{/U}}education where they will learn more useful skills
[简答题]如何创造良好的团粒结构?
[单项选择]病原体侵入血流,在血中繁殖产生毒素,表现严重的中毒症状,诊断为:()
A. 毒血症
B. 菌血症
C. 败血症
D. 脓毒血症
E. 变应性亚败血症
[判断题]轨道封锁解封后,无需信号重开命令,即可开放始端信号机。
A.正确
B.错误
[单项选择]全身骨显像时采集矩阵是()。
A. 64×64
B. 128×128
C. 256×256
D. 256×512
E. 256×1024
[单选题]我国消防工作贯彻()的方针。
A.以防为主,防消结合
B.预防为主,防消结合
C.专门机关与群众相结合
D.?以防为主,以消为辅
[判断题]直方图、折线图、散点图既可用于定量数据,也可用于定性数据。( )
A.正确
B.错误
[单选题]一个只有单端输入的边沿触发器,输入信号为0,原来所处状态Q=1,在时钟信号改变时,触发器状态Q变为0,则该触发器为( )。
A. RS触发器 
B. JK触发器 
C. D触发器 
D. T触发器
[单选题]在规定试验条件下,可燃物质发生自燃的最低温度称()。
A.点燃温度
B.自燃点
C.闪点
[判断题]进入危险建筑内攻前必须进行评估,必要时邀请建筑结构专家进行鉴定。 ( )
A.正确
B.错误
[单项选择]药品的界定不包括()
A. 兽药
B. 中药材
C. 中药饮片
D. 血清
[多选题]旅客车票的起码里程为( )。
A.客票20千米、加快票100千米
B. 客票25千米、加快票100千米
C. 卧铺票400千米
D. 卧铺票200千米
[判断题]多功能或复费率电能表时段投切误差的化整间距为0.5s。
[单选题]以下废物中,不属于特种垃圾的是( )。
A.废机油
B.制动液
C.防冻液
D.电线
[单项选择]Ashley’’s Message of Hope 1. The birth of any child raises many questions. Will she have my eyes, her dad’’s smile What will she want to be when she grows up But the biggest question for every parent is "Will she be healthy" 2. Our daughter, Ashley Elizabeth Naylor, was born on August 12, 1988. We had a lot of mixed emotions the day of her birth, but mainly we felt fear and despair. The doctors suspected complications (并发病) , which led to a cesarean section (剖腹产手术) , but the exact problem was not known. Two weeks after her birth, chromosome (染色体) analysis revealed cat cry syndrome. The doctors were uncertain about how the disease would develop. This was a rare disorder, we were told, and little could be offered to help our daughter. The doctors used the words "profoundly slow," which cut like a knife through our hearts and our hopes. It wasn’t until a few years later that we realized how little the medical community actually knew about cat cry syndrome and especially about our li
[多选题]党内监督必须把纪律挺在前面,运用监督执纪“四种形 态”,()。
A.经常开展批评和自我批评、约谈函询,让“红红脸、出出 汗”成为常态
B.党纪轻处分、组织调整成为违纪处理的大多数
C.党纪重处分、重大职务调整的成为少数
D.严重违纪涉嫌违法立案审查的成为极少数
[多项选择]糖尿病时血糖升高的机制有()
A. 组织对葡萄糖的利用减少
B. 胃肠道对葡萄糖吸收增加
C. 糖原分解代谢加速
D. 糖原合成减少
E. 外周组织摄取葡萄糖增加
[单选题]已知正弦电压U,=311sin(314t)V,当t=O.01s,电压的瞬时值为( )V。
A.O
B.311
C.220
D.31.1
[多项选择]商品检验的一般程序包括( )。
A. 报验
B. 抽样
C. 检验
D. 签证
E. 出关
[填空题]当转化水碳比增高时,脱碳系统的进气水含量(),反之()。
[判断题]坚持马克思主义,坚持社会主义道路。马克思主义必须是同中国实际相结合的马克思主义,社会主义必须是切合中国实际的有中国特色的社会主义。 ( )
[简答题]人民至上、生命至上,保护人民生命安全和身体健康可以不惜一切代价。()
[单选题]临时换挂、加挂客车,铁路局客运调度员应于列车出发前( )通知车辆调度员,由库列检、客列检接规定检修车辆。
A.2h
B.4h
C.6h
D.8h
[多选题]下列关于重要空白凭使用的说法正确的是( )
A.凭证使用人应按凭证号码顺序签发重要空白凭证,不得跳号使用,但可以根据客户需要对银行卡进行跳号使用。
B.能实现系统销号的重要空白凭证,凭证使用人不需进行手工销号。
C.不能在重要空白凭证上预先加盖印章备用。
D.柜员领用的重要空白凭证每天进行账、证核对,确保账实相符。

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