热门试题:
[单选题]高压开关柜前后间隔没有可靠隔离的,工作时应( )。
A.同时停电
B.加强监护
C.装设围栏
D.加装绝缘挡板
[简答题]与干硬跑道上的操作相比,在不利跑道条件下减退板的自动工作有没有明显区别?
[单选题]用经纬仪进行角度测量时( )属于系统误差。
A.读数误差
B.目标偏心差
C.度盘刻划误差
D.对中误差
[单项选择]主阀部呈制动、缓解、保压位是由()来控制的。
A. 作用风缸
B. 工作风缸
C. 降压风缸
D. 紧急风缸
[判断题]会计工作的社会监督,主要是指由注册会计师及其所在的会计事务所依法对受托单位的经济活动进行审计、鉴证的一种监督制度。
A.正确
B.错误
[单选题]蓄电池单体电解液泄露的可能原因有?
A.充电时电解液面符合要求
B.单体电池壳与盖损坏封口不严
C.气塞密封严实
D.单体电池外观完好
[判断题]房屋抵押权登记分为一般抵押登记和最高额抵押登记。()
[单项选择]滚装客船外部水密门附件,如钢丝、门销、轴承等应()。
A. 定期开关
B. 定期加油活络
C. C、B均对
[判断题]( )乘坐旅客的车辆及停有该车辆的线路,停有动车组的线路,禁止溜放作业。
A.正确
B.错误
[单项选择]根据基本的量本利图,当产销量()盈亏平衡点时,销售收入线与总成本线之间形成()区。
A. 大于;亏损
B. 小于;盈利
C. 小于;亏损
D. 等于;盈利
[单项选择]对轻、重症阿米巴痢疾均有较好疗效的是()
A. 链霉素
B. 青篙素
C. 甲硝唑
D. 二氯尼特
E. 吡喹酮
[单选题]高压回路上的工作,必须要拆除全部或一部分接地线后始能进行工作者,应征得( )的许可(根据调控人员指令装设的接地线,应征得调控人员的许可),方可进行。
A.A.工作票签发人
B.B.工作负责人
C.C.运维人员
D.D.监护人
E.略
F.略
[单选题]假如您需要找出 /etc/my.conf 文件属于哪个包 (package) ,您可以执行:
A. rpm -q /etc/my.conf
B. rpm -requires /etc/my.conf
C. rpm -qf /etc/my.conf
D. rpm -q | grep /etc/my.conf
[简答题]《铁路旅客运输服务质量规范》(铁总运〔2016〕247号)中对旅客问讯时有何要求?
[多选题]( )的说法符合团结互助的要求。
A.在崇尚个性化的时代,倡导团结互助应控制在一定范围内
B.在市场经济条件下,团结互助应是建立在等价交换原则基础上的互利行为
C.同事间常使用“您好”“谢谢”等话语,有助于促进团结互助
D.团结互助是团队精神的基本表现
[判断题]记录筛选是显示表中符合条件的记录,不符合条件的记录被隐藏。
[多选题]竣工决算报告应由那几部分组成()
A.工程质量鉴定书
B.竣工决算报告的封面.目录
C.竣工决算表格
D.竣工工程平面示图
E.竣工决算报告报告说明书
[多选题]机油压力过低时会对发动机运动机件造成什么影响?( )
A.润滑不良
B.摩擦加剧
C.温度上升
D.温度下降
[判断题] 根据《刑法》第一百四十六条的规定,生产、销售不符合安全标准的产品,造成严重后果的,处五年以下有期徒刑,并处销售金额百分之五十以上二倍以下罚金;后果特别严重的,处五年以上有期徒刑,并处销售金额百分之五十以上二倍以下罚金。
A.正确
B.错误
[多选题]制丸块是塑制蜜丸关键工序,那么优良的丸块应为( )
A.可塑性非常好,可以随意塑形
B.表面润泽,不开裂
C.丸块被手搓捏较为粘手
D.较软者为佳
E.握之成团.按之即散
[单项选择]对违反治安管理行为的人员,如果情节特别轻微,并能及时改正或者主动承认错误的,( )
A. 可以减轻或免予处罚
B. 不应减轻或免予处罚
C. 应该减轻或免予处罚
D. 应该免予处罚
[单项选择]男,15岁,糖尿病史1年。3天前感冒发热,食欲下降而停用胰岛素。一天来恶心、呕吐。查体:睡眠状态,大声呼唤可醒,很快又入睡,醒时答话含糊。该患者意识障碍属于( )
A. 嗜睡
B. 意识模糊
C. 昏睡
D. 浅昏迷
E. 无意识障碍
[单项选择]关于肝癌CT平扫检查,不正确的是()。
A. 大多数病灶为较低密度
B. 脂肪肝或肝硬化时,肝实质与病灶间密度差缩小
C. 肿瘤细胞分化越好,其密度与正常肝差异越大
D. 可发生坏死、出血、钙化
E. 脂肪肝特别显著时,病灶成为较高密度
[单选题].柱塞偶件配合面磨损后会导致____ Ⅰ.喷油压力下降,Ⅱ.喷油定时延后;Ⅲ.喷油量减少;Ⅳ.喷油时间延长。 (264.473.:第02.-03.章 燃油的喷射与燃烧)
A.Ⅰ+Ⅲ+Ⅳ
B.I十Ⅱ
C.Ⅱ+Ⅲ+Ⅳ
D.Ⅰ+Ⅲ
[判断题] 洗钱的处置阶段是指通过复杂的多种、多层的金融交易,将犯罪收益与来源分开,并进行最大程度的分散,以掩饰线索和隐藏身份。( )
A.正确
B.错误
[判断题](1.0分)在吊篮平台上使用的手持电动工具的电源电压不得超过220伏。
A.正确
B.错误
[判断题]有限空间作业人员必须配备个人防中毒窒息等防护装备,设置安全警示标识,严禁无防护监护措施作业。 ( )
A.正确
B.错误
[多选题]CRH380A统型动车组简述真空断路器的作用?
A.是为了当牵引变压器在二次侧以后的电路中发生故障时
B.对过电流迅速、安全、确实地断开为目的安装的
C.在对事故电流断开的同时,它也是平常开闭主回路一种开关
D.是兼具断路器和开关两种功能的机器
[单项选择]You have been working on a very large software development project that has made use of over 230 people. Finally, all the scope of work is completed, it would be BEST to ().
A. throw a party for the team members
B. make sure the project is integrated with other projects
C. begin to focus on your other projects
D. analyze project success or failure
[不定项选择题]共用题干
第三篇
Eat More, Weigh Less, Live Longer
Clever genetic detective work may have found out the reason why a near-starvation diet
prolonas the life of many animals.
Ronald Kahn at Harvard Medical School in Boston,U.S.,and his colleagues nave
been able to extend the lifespan(寿命)of mice by 18 per cent by blocking the rodent's(啮
齿动物)increase of fat in specific cells.This suggests that thinness一and not necessarily
diet一Iromotes lonq life in"calorie(热量卡)restricted" animals.
"It's very cool work",says aging researche:Cynthia Kenyon of the University ot
California, San Francisc."These mice eat all they want, lose weight and live longer.It's
like heaven."
Calorie restriction dramatically extends the lifespan of organisms as different as worms
and rodents.Whether this works in humans is still unknown,partly because few people are
willina to submit to such a strict diet.
But many researchers hope they will be able to trigger the same effect with a drug once
they understand how less food leads to a longer life.One theory is that eating less reduces
the increase of harmful things that can damage cells.But Kahn's team wondered whether
the animals simply benefit by becoming thin.
To find out, they used biology tricks to disrupt the insulin(胰岛素)receptor (受体)
gene in lab mice一but only in their fat cells."Since insulin is needed to help fat cells store
fat ,these animals were protected against becoming fat,"explains Kahn.
This slight genetic change in a single tissue had dramatic effects.By three months of
age.Kahn's modified mice had up to 70 per cent less body fat than normal control mice,
despite the fact that they ate 55 per cent more food per gram of body weight.
In addition ,their lifespan increased.The average control mouse lived 753 days,while
the thin rodents averaged a lifespan of 887 days.After three years,all the control mice had
died.but one-quarter of the modified rodents were still alive.
"That they ciet these effects by just manipulating the fat cells is controversial,"says
Leonard Guarente of the Massachusetts Institute of Technology,who studies calorie
restriction and aging.
But Guarente says Kahn has yet to prove that the same effect is responsible for
increased lifespan in calorie-restricted animals."It might be the same effect or there might
be two routes to long life,"he points out,"and that would be very interesting."
What does the last sentence in the third paragraph imply?
A.People like to lose weight,but they do not like to eat less.
B.People want to go to heaven,but they do not want to die.
C.Mice will go to heaven if they lose weight.
D.Mice enjoy losing weight.
[单选题]下列哪种情况组件流量控制活门不会电控关闭( )
A.同侧发动机起动时
B.发动机火警电门释放
C.“Ditching”电门打到“ON”
D.管道超温
[判断题]在刑罚交付执行后,在看守所服刑的罪犯,暂予监外执行由看守所提出书面意见,报设区的市一级以上公安机关批准。
A.正确
B.错误
[多选题]社区工作者与居民接触的技巧有( )。
A.事先准备
B.与社区居民的接触过程中,首先让居民介绍一下自己,取得居民的信任,从普通容易回答的问题开始展开话题
C.在聆听的基础上主动发问、维持对话
D.感谢居民的信任和支持,为下一次对话留有余地,结束对话
[单选题]对感觉障碍的患者,下列护理措施中哪项不妥
A.缓解患者紧张不安的情绪
B.避免患处重压,防止压疮
C.对感觉障碍的患肢,使用暖水袋保暖
D.避免搔抓患处,以防损伤造成感染
E.衣服应柔软宽松,以减少对皮肤的刺激
[单项选择]耻骨联合上缘至股骨内上髁上缘的骨度分寸是()
A. 18寸
B. 19寸
C. 20寸
D. 21寸
E. 22寸
[单选题]‡年,公司将抓好长宁、威远持续稳产和泸州、渝西加快上产,严格控制单井投资在批复方案以内,力争全年新投井237口,页岩气产量达到( )亿立方米。
A.110
B.120
C.125
D.130
[单选题],
电流式油中溶解气体分析仪的变送器能把被测物质的浓度变化转换为()。
A.电压
B.电流
C.电阻
D.电导
[多选题]根据《国家电网公司计量资产全寿命周期管理办法机各省公司计量中心可结合实际情况选择()进行配送。
A.分级配送模式
B.直接配送模式
C.采用分级配送模式与直接配送模式相结合的方式
D.计量器具自取方式
[单项选择]有人阅读长沙马王堆出土的帛书《道德经》后,总结了一下内容,你认为可信的是()
A. 有无相生,难易相成,长短相形,高下相倾
B. 道之以政,齐之以刑,民免而无耻
C. 夫严刑者,民之所畏也;重罚者,民之所恶也
D. 若使天下兼相爱,国与国不相攻,家与家不相乱
[多选题]采煤工作面冒顶处理主要采用( )。
A.探板法
B.撞楔法
C.小巷法