热门试题:
[单选题]站内坡度超过（）的线路，在接触网停电检修“天窗”时间内，不得停留电力机车及其牵引的列车、动车组。
A.2.5‰
B.2.50%
C.6‰
D.6%
[单选题]禁止作业人员擅自变更工作票中指定的接地线位置，若需变更，应由工作负责人征得（）
A.工作许可人或专责监护
B.工作许可人或小组负责人
C.工作票签发人或专责监护人
D.工作票签发人或工作许可人
[单选题]关于《安全生产法》的立法目的，下列表述中不准确的是( )
A.加强安全生产工作
B.防止和减少生产安全事故
C.保障人民群众生命和财产安全
D.提升经济发展速度
[单选题]在分析超纯水的金属离子时，在配制标准使用溶液I的过程中，需要加入5mL的（）。
A.电子级氢氟酸
B.超纯硝酸
C.超纯硫酸
D.超纯水
[单项选择]关于急性肾衰竭护理，下列不正确的是（）
A. 尿量<400ml/d，提示肾衰竭可能
B. 少尿期饮食应取低蛋白
C. 避免使用含钾药物
D. 进入多尿期表示患者已脱离危险
E. 禁用对肾有毒性作用的药物
[单选题]钻井施工现场临时用电架空线最大弧垂与地面距离，在施工现场不小于( )米。
A.3.5；
B.3；
C.2.5 ；
D.2。
[多选题]施工前已埋入地中，可兼作接地体用的各种构件，如 等称作自然接地体。
A.钢管脚手架
B.钢筋混凝土基础的钢筋结构
C.金属井管
D.金属管道（非燃气）
E.塔吊金属结构
[填空题]手动报警按钮、消防电话插孔安装在一起，全站所有走廊与公共区、区间隧道都有分布，不超过（）米一个
[单选题]评定材料抗冷裂性最好的间接评定方法是( )。
A.冷裂纹敏感性指数
B.碳当量法
C.热影响区最高硬度法
D.搭接接头(CTS)焊接裂纹试验法
[判断题]氨水蒸发的热源，采用蒸汽。( )
A.正确
B.错误
[单项选择]Within 80 years, some scientists estimate, the world must produce more than eight times the present world food supply. The productiveness of the sea raises our hopes for an adequate food supply in the future. Aided by men of science, we have set forth to find out that 70 percent of the earth remains unexplored--the ocean depths. Thus, we may better discover and utilize the sea’s natural products for the world’s hungry.
It is fish protein concentrate that is sought from the seas. By utilizing the unharvested fish in United States waters alone, enough fish protein concentrate can be obtained to provide supplemental animal protein for more than one billion people for one year at the cost of less than half a cent per day per person. The malnutrition of children is terribly tragic. But the crime lies in society’s unrestrained breeding, not in its negligence in producing fish powder. But wherever the population projects are carefully considered, the answer to the problem is something li
A. the oceans will help to provide enough food for the world in the future.
B. thirty million tons of food products are taken from the sea every year.
C. city sewers are pouring forth polluted matter into bays and coastal waters.
D. a steady increase in population will result in more hungry mouths to feed.
[填空题]软磁性材料的磁特性参数方面表现为磁导率较大，（ ）较小，其磁滞回线呈狭长状，而硬磁性材料则表现出相反的性质。
[单选题]男,54岁。发热2周余,体温37.5-38.2℃,未使用抗生素治疗。风湿性二尖瓣狭窄合并关闭不全病史。超声心动图提示二尖瓣上有赘生物。该患者最可能的血培养结果是
A. 黄金色葡萄球菌
B. 草绿色链球菌
C. 肺炎链球菌
D. 肠球菌
E. 淋球菌
[单项选择]
A. to play
B. having played
C. playing
D. to have played
[单选题]一旅客持牡丹江—哈尔滨车票，携带纸箱1件14kg(教具长68cm,宽58cm,高76cm)，竹筐一件10kg（内装1只猫和杂物），出站时被发现。哈尔滨站应补收（）。
A.牡丹江—哈尔滨24kg四类包裹运费
B.牡丹江—哈尔滨14kg四类包裹运费
C.牡丹江—哈尔滨10kg四类包裹运费
D.加倍补收牡丹江—哈尔滨10kg四类包裹运费
[单项选择]在深度为5的满二叉树中，叶子结点的个数为
A. 32
B. 31
C. 16
D. 15
[简答题]
W: Professor Weston, could I speak to you
M: Come in please, Jenny. How can I help you
W: I need to get your signature on my schedule card here, on the line above advisor’s approval.
M: Sure, but let’s look at it over together first. How many courses do you have here
W: Six.
M: Six That’s quite a heavy load. Any particular reason
W: I had to drop my chemistry course last semester when I was in a hospital, so. I need to take it gain.
M: So you’ve already learnt a lot of the material.
W: Right. And calculus is a part of the third year requirement.
M: Let’s see, chemistry. Oh I see you’ll be in my seminar on modern American novels.
W: Yes, I’m looking forward to it and the romantic poetry seminar, too.
M: Two seminars That is rather a lot. Can you handle the work
W: I think so. I know it’s a graduate course and I’m only a junior, but..
[单项选择]何时可以通过MCDU查询APU的信息（）
A. 飞机有电；
B. APU在停车后；
C. APU主电门在ON位且APU不运转。
[单选题]120km/h及以下区段，接触线坡度限界值不超过（ ）。
A.3‰
B.5‰
C.6‰
D.8‰
E.略
F.略
[判断题]部属对命令必须坚决执行,并将执行情况及时报告首长。如果认为命令有不符合实际情况之处,可以不执行。( )
A.正确
B.错误
[单项选择]
患者男，48岁。因高热、皮肤出现小出血点、头晕乏力就诊。入院后诊断为再生障碍性贫血。血常规显示：Hb80g／L，RBC3×1012／L，WBC3×109／L，PLT70×109／L。
本病急性型易引起死亡的原因是（）
A. 贫血
B. 肾衰
C. 缺氧
D. 感染
E. 心衰
[单项选择]疖病的临床特征，请指出哪项是错误的（）
A. 好发于项后发际部、臀部
B. 好发于夏秋季节
C. 可发生于身体各处
D. 好发于消渴患者
E. 此处未愈他处又起
[多项选择]按照迈克尔·波特的观点，一个行业中的竞争力量包括( )。
A. 潜在进入者的威胁
B. 行业内现有企业的竞争
C. 供应商讨价还价能力
D. 买方讨价还价能力
E. 互补品的威胁
[单项选择]男性，43岁，因"突发呕鲜血3小时"入院。查体：血压78/35mmHg，脉搏133／分钟。嗜睡，全身皮肤黏膜苍白、湿冷，可见皮肤花斑样改变，可见蜘蛛痣和肝掌。心音低，脉搏细弱，腹隆，可见腹壁静脉曲张，腹水征阳性，肠鸣音活跃。既往有肝硬化病史4年。目前首要处理为（）
A. 口服抑酸药
B. 经胃管灌注药物止血
C. 三腔双囊管压迫止血
D. 补充血容量
E. 使用止血药物
[简答题] Taking a stand
Xuemei Han was a second-year graduate student in the Department of Ecology and Evolutionary Biology at Yale University. Last month, she was facing expulsion (开除). Efforts to transfer to the university’’s forestry school had failed, and it looked as though the 26-year-old might have to return to China within a matter of weeks.
In June, Han had been told that she was "not in good academic standing" with her department — an accusation she disputed. She had passed her qualifying exams at the first attempt and, after a few more tries, her required language exam as well. So she did something that many Chinese graduate students would never dream of doing: on 20 October she filed a complaint against Yale, accusing the university of treating Chinese students unfairly. The only Chinese student in her department, Han wrote in her complaint that she suspected professors were reluctant to work with her because they thought she would nee
[多选题]国家秘密的密级分为（ ）。
A. 绝密
B. 机密
C. 秘密
D. 重要
E. 一般
[多选题]作为一名党员，享有下列权利：( )。
A.选举权
B.被选举权
C.表决权
D.罢免权
[单选题]( )计量曝气池中活性污泥数量多少的指标。
A.: SV%
B.: SVI
C.:MLVSS
D.:MLSS
[判断题]选择滚动轴承配合时，一般是固定套圈比动套圈配合得紧些。( )
A.正确
B.错误
[单项选择]在小组工作的准备期，社会工作者介入的焦点之一是评估，评估的内容包括：服务对象的真实需要、需要目标的一致性和( )。
A. 服务对象的兴趣
B. 服务对象的特长
C. 服务对象的兴趣和特长
D. 服务对象的兴趣和特长、心理、生理、情绪、教育程度
E. 服务对象的心理、生理、情绪、教育程度
[填空题]信号发生器按工作频率分为超低频、（）、视频、（）和超高频信号发生器。
[单选题]高度在3m以上的脚手架，其工作边外侧及斜道两侧应安设挡脚板和（）m高的防护栏杆。
A..8
B.1
C.1.2
D.1.5
[单项选择]按氧气与乙炔的混合比不同，火焰分为（）种。
A. 2
B. 3
C. 4
D. 5
[单选题]、GK3B 机车通过最小曲线半径是（ ）。
A. 、500m
B. 、120m
C. 、80m
D. 、200m
[单项选择]治疗风寒泻的首选方剂是（）
A. 藿香正气散
B. 异功散
C. 匀气散
D. 益元散
E. 养脏散
[判断题]判断题( )在电梯超载报警的情况下继续装运,可能导致电梯发生蹲底事故
A.正确
B.错误
