热门试题:
[判断题]低压电气带电工作,应采取绝缘隔离措施防止相间短路和单相接地。( )
A.正确
B.错误
[单项选择]辞去公职或者退(离)休后()年内,不得到本人原任职务管辖的地区和业务范围内的企业兼职(任职),也不得从事与原任职务管辖业务相关的营利性活动。
A. 1
B. 2
C. 3
D. 4
[单选题]引起变态反应性疾病的环境因子主要是
A. 氟化物
B. 甲基汞
C. 甲醛
D. 砷化物
E. 非电离辐射
[单选题]汛期应加强( )和( )的设备检查,严格执行汛期安全措施,强化降雨量和洪水位警戒制度、防重点处所监护制度。
A.雨前,雨中
B.雨前,雨后
C.雨中,雨后
D.以上都不是
[单项选择]正常变异较大的脑池是()
A. 视交叉池
B. 鞍上池
C. 环池
D. 枕大池
E. 大脑大静脉池
[单选题]地区电缆不平衡电阻应不大于()
A.1.5Ω
B.2Ω
C.2.5Ω
D.3Ω
[单项选择]()不是焊接接头硬度试验的测定内容。
A. 布氏硬度
B. 马氏硬度
C. 洛氏硬度
D. 维氏硬度
[多选题]井下积聚有气柱时,关井后气柱向上运移,要引起注意的是( )。
A.不应该长时间关井不处理
B.不应该长时间关井不循环
C.必须允许天然气膨胀
D.不允许天然气膨胀
E.长时间关井的井口压力高不能认为地层压力非常高
[单选题]列车运行中,遇昼间两臂高举头上向两侧急剧摇动,夜间白色灯光上下急剧摇动,司机应立即( )。
A.减速
B.降弓
C.停车
[多项选择]根据《水利建设项目后评价管理办法》(水规计【2010】51号),水利工程建设项目后评价包括()。
A. 设计单位的自我评价
B. 监理单位的自我评价
C. 项目法人的自我评价
D. 项目行业的评价
E. 主管部门的评价
[单选题]导致左心室压力负荷过重的病因是
A.二尖瓣关闭不全
B.主动脉瓣关闭不全
C.甲状腺功能亢进
D.高血压
E.肺动脉瓣狭窄
[简答题]你单位组织科普下乡,带了地球仪作为礼品发放,在活动过程中礼品不够了,你怎么办?
[单选题]可动心轨道岔的普通钢轨接头应使用10.9级螺栓,扭矩应保持在( )。
A.700~900 N.m
B.120~150 N.m
C.1100~1400 N.m
D.250~300 N.m
[判断题]根据《电力建设工程工程量清单计价规范》2016版的规定,投标人的投标报价高于最高投标限价的,招标人可以允许投标人重新报价。( )
A.正确
B.错误
[单项选择]各级卫生行政部门在行业作风建设中要以求真务实精神抓好工作落实,就应当()
A. 维护人民健康权益放在第一位
B. 解决损害人民群众切身利益的突出问题
C. 促进卫生行业作风建设
D. 损害群众利益的不良行为
E. 加强领导,明确责任
[单选题]使用软梯、挂梯作业或用梯头进行移动作业时,软梯、挂梯或梯头上只准()人工作。
A.一
B.二
C.三
D.四
E.略
F.略
[单选题]小额支付系统普通贷记支付业务单笔最高交易限额为( ),周末( )和法定节假日的单笔最高交易限额为( )。
A.5万元,10万元
B.5万元,20万元
C.5万元,30万元
D.5万元,
[单项选择]辩证唯物主义认为,物质的唯一特性是()。
A. 广延性
B. 持续性
C. 客观实在性
D. 可知性
[单项选择]麻黄与薄荷属于()
A. 味同气异
B. 味异气同
C. 作用相同
D. 气味不同
E. 气味相异
[单项选择]将中国国画中的意境运用到油画中的大师是()
A. 赵无极
B. 丁绍光
C. 贝聿铭
D. 谭盾
[单项选择]洗剂的主要基质及组成不包括()。
A. 氧化锌
B. 淀粉
C. 滑石粉
D. 炉甘石
[单选题]下列对带电情况下安全防护方法表述不正确的是( )。(易)3
A.灭火战斗中,在未确认现场是否断电之前,要按有电情况下进行处理
B.扑救建筑火灾时,消防人员可站在电线下方,但使用金属工具破拆建筑结构时,要防止破拆工具接触带电物体
C.扑救架空的带电设备或电气线路火灾时,已处于危险区域的消防人员应立即扔掉手中灭火器材,采取单脚或双脚并拢的方式跳至带电体触地处10m以外
D.要使用二氧化碳、干粉等适用于电气火灾扑救的灭火剂(器)
[单选题]奥美拉唑治疗消化性溃疡的机理是
A.拮抗H2受体作用
B.抑制H+-K+-ATP酶活性
C.拮抗胃泌素受体作用
D.促进胃黏液分泌作用
[判断题]供电段的主要任务是:编制大修、改造和科研计划,不负责制定接触网小修计划。
A.正确
B.错误
[判断题]( )安全带的挂钩或绳子应挂在结实牢固的构件上,并应采用高挂低用的方式。禁止挂在移动或不牢固的物件上。
A.正确
B.错误
[多选题]在对非水酸碱滴定的叙述中正确的是( )。
A.溶剂的使用有利于提高被检测物的酸碱性
B.溶剂应能溶解试祥和滴定产物
C.溶剂应有足够纯度,其杂质不能干扰测定
D.溶剂应有较小的挥发性,使用时应有足够的安全性
E.在使用甲酸、乙酸作溶剂时,一般加入一些乙酸酐,其目的是除去溶剂中的微量水
[填空题]
El Nino is name given to the mysterious and often unpredictable change in the climate of the world. This strange (1) happens every five to eight years. It starts in the Pacific Ocean and is thought to be caused by a failure in the trade winds (信风),which affects the ocean currents driven by these winds. As the trade winds lessen in (2), the ocean temperatures rise, causing the Peru current flowing in from the east to warm up by as much as 5℃.
The warming of the ocean has far-reaching effects. The hot, humid (潮湿的) air over the ocean causes severe (3) thunderstorms. The rainfall is increased across South America. (4) floods to Peru. In the West pacific, there are droughts affecting Australia and Indonesia. So while some parts of the world prepare for heavy rains and floods, other parts face drought, poor crops and (5).
El Nino usually lasts for about 18 months. The 1982-83 El Nino brought the most (6) weather in modern history. Its effect was worldwide and it left mo
[填空题]
Caring for Elderly Parents Catches Many Unprepared
A.Last July, Julie Baldocchi’s mother had a massive stroke and was paralyzed. Baldocchi suddenly had to become a family caregiver, something that she wasn’t prepared for. "I was flying by the seat of my pants," says Baldocchi, an employment specialist in San Francisco. Both of her parents are 83, and she knew her father couldn’t handle her mother’s care. The hospital recommended putting her mother in a nursing home. Baldocchi wasn’t willing to do that. But moving her back into her parents’ home created other problems. Baldocchi, 48, is married and lives about a mile away from her parents. She has a full-time job and has back problems that make it difficult for her to lift her mother. "I couldn’t do it all," she says. "But I didn’t even know how to find help."
B.With help from the Family Caregiver Alliance, she eventually hired a live-in caregiver. "But even if you plan intellectu
[填空题]票卡回收模块由天线、上端传感器、下端传感器、上档片、下档片、( )、电机。注:AFC专业知识( )
[单选题]下面哪一本书不是“四书”之一?( )
A.《大学》
B.《春秋》
C.《孟子》
D.《中庸》
[单项选择]肝发生炎症及肝细胞坏死持续多长时间以上称为慢性肝炎
A. 3个月
B. 6个月
C. 8个月
D. 10个月
E. 1年
[单选题]线上焊接的接头,应在( )天内由设备管理单位安排第二次复探。
A.5
B.7
C.15
D.30
[单项选择] In these times, when our form of government is being criticized by people of’’ many different persuasions, it is important that we understand the principles on which our society was founded. Too often these principles are disregarded by the very people who are most vociferous (大声叫的) in defending the country against criticism. Basic to our democracy is belief’’ that truth can only be arrived at through a free interchange of ideas. Freedom of speech is one of our most cherished values. Nevertheless, with a total disregard of the principles of democratic fair play, the average citizen is apt to hurl harsh accusations in an attempt to silence anyone who may not agree with him. Too many citizens understand democracy only as a slogan and have no real concept that democracy in practice means we must tolerate the expression of unpopular ideas.
Our list of deadly sins should be revised to include the misrepresentation of principles to gratify one’’s personal spite or vanity, the betrayal
A. self-interest
B. fear of common enemy
C. discontent with a common oppressor
D. the shared ideal of making a better world
[判断题] 可对正在使用中的未经授权的设备进行检修作业。 (是非题)
A.正确
B.错误
[单项选择]下列定义变量的语句中错误的是【 】。
A. int_int;
B. double int_;
C. char For;
D. float US$;
[多选题]《安全生产法》(2021年修订)第四十二条规定,生产、经营、储存、使用危险物品( )不得与员工宿舍在同一座建筑物内,并应当与员工宿舍保持安全距离。
A.车间
B.商店
C.仓库
D.车库
[多选题]城轨接触网一般采用()和()。
A.带电作业
B..带电远离作业
C..停电作业
D..远离带电体检修。