热门试题:
[判断题]尖轨、可动心轨顶面宽50 mm及以下断面处，尖轨顶面高于基本轨顶面、可动心轨顶面高于翼轨顶面2 mm及以上，应及时修理或更换。
A.正确
B.错误
[多选题]（）对有触电危险、检修（施工）复杂容易发生事故的工作，应增设专责监护人，并确定其监护的人员和范围。
A.工作票签发人
B.工作许可人
C.工区领导
D.工作负责人
E./
F./
[单选题]一条线路分区段工作，若填用一张工作票，经（）同意，在线路检修状态下，由工作班自行装设的接地线等安全措施可分段执行。
A.工作票签发人
B.工作负责人
C.工作许可人
D.专责监护人
[单项选择]Men are spending more and more time in the kitchen encouraged by celebrity chefs (名厨师) like Gordon Ramsay and Jamie Oliver, according to a report from Oxford University.
The effect of the celebrity role models, who have given cookery a more manly image, has combined with a more general drive towards sexual equality, to mean men now spend more than twice the amount of time preparing meals than they did in 1961.
According to research by Prof. Jonatahn Gershuny, who runs the Centre for Time Research at Oxford, men now spend more than half an hour a day cooking, up from just 12 minutes a day in 1961.
Prof. Gershuny said: "The man in the kitchen is part of a much wider social trend. There has been 40 years of gender equality, but there is another 40 years probably to come."
Women, who a generation ago spent a fraction under two hours a day cooking, now spend just one hour and seven minutes—a dramatic fall, but they still spend far more time at the stove than men. Some cr
A. the decrease of shared meals
B. the shrinking of modern kitchens
C. consumers’ becoming more economical
D. parents’ greater tolerance to children’s eating habits
[单选题]完成停电试验记录和报告时，同一设备同期开展的各项检测或试验项目( )。
A.可合并为一个检测或试验记录
B.不可合并为一个检测或试验记录
C.必须为多个检测或试验记录
D.必须按类别出具检测或试验记录
[单项选择]有本书里这样评价他“一痴一醒，时人尽以为狂。然独有圣贤之明。人莫可与语”“被发佯狂不与于世”。请问是下列哪一本？（）
A. 史记
B. 世说新语
C. 中庸
D. 越绝书
[多选题]1.244. 第244题 母线外观检查要点
A.母线的包装、运输和储存应符合规定,避免在运输、储存以及现场制作、安装过程中对母线的损伤
B.母线数量、规格与型号符合设计图纸要求
C.母线表面应光洁平整,不应有裂纹、折皱、夹杂物、变形、扭曲和锈蚀现象
[判断题]《煤矿安全规程》规定一氧化碳的最高允许浓度是0.024%。
A.正确
B.错误
[多选题]作固定替换用的调车机车及小运转机车，应符合调车机车的条件（有（ ）等）。
A.前后头灯
B.扶手把
C.防滑踏板
D.车前踏板
[单选题]关于急性肾衰竭（AR
F）以下哪个是正确的？
A.肾前性肾功能不全，尿比重通常小于1. 010
B.急性肾衰一定伴有少尿
C.血液滤过是治疗严重酸中毒的最佳方法
D.严重创伤并发ARF时要严格控制蛋白质摄入
E.以上都正确
[单项选择]
A controversial decision on whether choice cuts of steak and cartons of milk produced from cloned animals are suitable for the dinner table is now long overdue.
Hundreds of pigs, cows and other animals created with the help of cloning are living (1) farms across the United States and (2) the forthcoming ruling will directly (3) American consumers, British holidaymakers may also (4) themselves at the forefront of a food revolution that many commentators expect will (5) arrive here.
(6) the birth of Dolly the sheep-the first mammal cloned from an adult cell--there were extreme predictions of herds of genetically (7) bulls and pastures (8) with cloned dairy cows.
That double (9) of the past decade has not yet been realized (10) clones have become a familiar sight at agricultural fairs in America, where producers of (11) pigs and cattle have been among the first to (12) cloning
A. eventually
B. accidentally
C. occasionally
D. promptly
[单选题]业扩配套项目应根据形象进度安排年度投资，原则上1-7月份、8-11月份、12月份立项项目，安排年度投资占总投资的比例分别不低于85%、 、 。
A.60%、15%
B.50%、30%
C.60%、30%
D.50%、15%
[多选题]根据基本焦虑理论，焦虑包括( )
A.道德性焦虑
B.显性焦虑
C.现实性焦虑
D.基本焦虑
[单选题]上皮组织的功能主要包括（ ）
A.保护、分泌、吸收和感受外界刺激
B.保护、分泌和吸收功能
C.分泌、吸收和感受外界刺激
D.吸收和感受外界刺激
[单项选择]具有高强度，良好塑性，较强耐腐蚀性能，很好的绝缘性和重量轻等优良性能的材料是（）材料。
A. 耐火
B. 复合
C. 高分子
D. 耐腐蚀非金属
[判断题]我国的事业单位除经营业务采用收付实现制外，其他业务均采用权责发生制。()
A.正确
B.错误
[多选题]色谱仪柱箱温度可以影响（）因此应严格控温。
A.柱效率
B.分离度
C.化学稳定性高
D.分配系数
[单项选择]
Dietetics (营养学) is the application of the science of nutrition (营养) to the selection and preparation of foods, in health and disease. A dietitian is specially trained to give practical advice to individuals about their diets. He/she will have received training in a hospital and/or community setting as part of his/her course. Many dietitians are employed in the NHS (National Health Service). They work with both healthy and sick people, as well as their families. With patients who need special diets, dietitians use their scientific knowledge to provide practical information that is appropriate to the patient’s medical history and lifestyle.
These days a large number of dietitians spend some or all of their time working in the community rather than in a hospital. Many of these have fur conditions to apply for registration in public health nutrition as well as being registered dietitians (RD). In the community, the dietitian’s work is more about health education,
A. dietetics
B. health education
C. British Dietetic Association
D. dietitians
[单选题]CRH380B/BL型动车组降噪板轮毂侧脱胶深度（ )mm。
A.≤150
B.≤160
C.≤170
D.≤180
[单项选择]燃烧必须同时具备下列三个条件：可然物、氧化剂和点火源。工作中必须使用可燃物时，最容易和最有效的安全措施是（）予以记录。
A. 消除氧化剂
B. 消除点火源
C. 配备灭火器材
D. 培训消防人员
[单选题]图上有（ ）违章行为。
A.船舶超载使用
B.乘坐船舶未穿戴救生衣
C.安全帽佩戴不规范
D.着装不规范
[判断题]触碰安全红线，同时构成责任铁路交通事故或生产安全事故的，按事故处理，重复考核处理。
A.正确
B.错误
[判断题]凡在车站参加作业的站、段、所等有关人员，均须熟悉和执行《站细》的有关规定。
A.正确
B.错误
[单选题]导线架设后，导线对地及交叉跨越距离，应符合设计要求。居民区内 1～10kV 线路导线与地面的最小距离为（ ）。
A.5米
B.5.5米
C.6米
D.6.5米
[单选题]上一级安全培训机构可以承担下一级安全培训机构的培训工作。（ ）
A.正确
B.错误
[单选题]地下光缆和电缆线路与树木平行的距离应满足：在市内≥750mm，在市区外≥( )。
A.1000mm
B.1500mm
C.2000mm
D.2500mm
[单项选择]当受均布荷载作用的简支梁的跨度增大1倍时，其最大变形厂将增加到原来的（）
A. 4倍
B. 8倍
C. 12倍
D. 16倍
[单项选择]对于己方，追求心理的阶段变化的应策有：（）
A. 饱而不贪、饥而不急、荒而不慌。
B. 随阶段变、乘胜追击、不失时机。
C. 随阶段变、不急不慌、乘胜追击。
[单选题]施工现场内无围护设施或围护设施高度低于（ ）米的楼层周边、楼梯侧边、平台或阳台边、屋面周边和沟、坑、槽、深基础周边等危及人身安全的边沿的简称。
A.0.8
B.1
C.1.2
D.1.5
[单项选择] THE HYDROGEN ECONOMY
It seems like every day there is a new announcement in the news about automobiles powered by fuel cells. The promises are great, since fuel cells have the potential to very quickly double the efficiency of cars while significantly reducing air pollution.
At the same time, there have been news stories for decades about the problems associated With petroleum. Everything from oil spills to ozone(臭氧) alerts to global warming gets blamed on our dependence on fossil(化石) fuels.
These two forces are leading the world toward what is broadly known as the hydrogen economy. If the predictions are true, over the next several decades we will all begin to see an amazing shift away from the fossil fuel economy we have today toward a much cleaner hydrogen future.
Problems with the fossil fuel economy
While fossil fuels have played an important role in getting society to the point it is at today, there are four big problems that fossil
A. Y
B. N
C. NG
[单项选择]甲因盗窃被公安机关逮捕。在审讯期间，甲主动交代出曾实施过抢劫犯罪。甲交代抢劫犯罪的行为属于( )
A. 自首
B. 坦白
C. 立功
D. 悔过
[单项选择]双方通过谈判达成一致并签署咨询合同后，咨询工作就进入( )阶段。
A. 策划
B. 实施准备
C. 实施
D. 操作
[填空题]诊断和改正程序中错误的工作通常称为______。
[判断题]站内或站内道口两端不设司机鸣笛标。( )
A.正确
B.错误
[单选题]1.152.第152题
照明用电线路的电压损失不得超过＋5%。
A.正确
B.错误
