热门试题:
[单项选择]对自杀未遂者的心理特征描述正确的是（）
A. 优柔寡断，丧失自尊
B. 仅少数自杀者表现为情绪不稳定、不成熟的神经质倾向
C. 具有冲动性和盲目性，没有攻击性
D. 对新环境适应并不困难，但难于获得较多的社会支持
E. 自杀者一般存在不良的认知模式
[单选题]在制冷装置中,清除机械杂质的基本方法是()。
A.用干燥剂
B.用过滤器
C.用截止阀
[单项选择]下列叙述中，正确的是
A. 二分法查找的平均检索长度小，插入、删除方便
B. 分块查找中每个块中的结点是有序的．块与块之间可以没有顺序
C. 好的散列函数能将关键码值均匀地分布在整个地址空间中
D. 散列表的平均检索长度直接依赖于元素的个数
[单选题]硬质梯子的横档应嵌在支柱上,梯阶的距离不应大于( ),并在距梯顶( )处设限高标志。使用单梯工作时,梯与地面的斜角度为( )左右。
A.45Cm.1m.70°
B.40Cm.1m.60°
C.40Cm.1m.70°
D.45Cm.1m.60°
[单选题] (二十)根据以下情境材料,回答 71-73 题。
李某的妻子于 2015 年在某医院产下一女婴,后该女婴被诊断为脑瘫。李某及其父亲认为系医疗事故所致,遂多次到医院讨要说法、要求赔偿。为给院方施加压力,李某及其父亲纠集王某、孙某等十余人来到医院,在医院停车场进出口拉横幅,长时间影响车辆的正常进出,并用扩音喇叭高声喧哗,引发百余名群众围观,致使医院门口周围交通严重堵塞。根据上述案情分析,李某的行为属于:(单选)
A.妨害公共安全
B.聚众扰乱社会秩序
C.聚众斗殴
D.寻衅滋事
[单选题]抗真菌药物可用于治疗
A.水样便
B.黏液脓血便
C.黄色稀便，泡沫较多，含豆腐渣样细块
D.金黄色糊状便
E.“赤豆汤样便”
[多选题]根据《保安服务管理条例》规定,具有下列( )情形之一的人员不得从事保安服务。
A. 曾被收容教育
B. 曾被领导批评教育
C. 曾被公安机关行政拘留
D. 曾受学校行政处分
E. 曾被劳动教养
[判断题]地下有限空间内存在积水、污物的，应采取措施，待气体充分释放后再进行检测。
A.正确
B.错误
[单项选择]Dollars and cents are the basic units of American money．The back of all dollar bills are green(hence"greenbacks")．The commonly used coins are: one cent(penny), five cents(nickel), 10 cents(dime), and 25 cents(quarter)．50 pieces(half dollar)and silver dollars(not really silver anymore)are gaining in usage, while there has been talk of phasing out the penny—that’s inflation for you．"Mways carry plenty of quarters when travelling．Very useful for phones, soda machines，laundry machines, etc."
There is generally no problem in using us dollars in Canada, but this is never possible in reverse．
It’s always useful to carry small change for things like exact fare buses, but do not carry large sums of cash．Instead keep the bulk of your money in travellers’ cheques which can be purchased both in the us and abroad and should be in dollar denominations．The best known cheques are those of American Express, so you will have the least difficulty cashing these, even in out of the way places
A. a tourist guide
B. a bank brochure
C. a booklet about car rental
D. a handbook on
[多选题]编制定额应简明适用，是指（ ）。
A.文字通俗易懂
B.粗细适度，步距大小适当
C.技术工艺先进
D.组织合理
E.计算方法简便，宜于掌握
[多选题]配电系统必须按照总平面布置图规划，设置配电柜或总配电箱、（），实行三级配电/两级保护（首级、末级）。
A.分配电箱
B.开关箱
C.一级箱
D.二级箱
E.略
F.略
[单选题]国际共产主义运动中无产阶级的不朽战歌是( )。
A.《马赛曲》
B.《义勇军进行曲》
C.《国际歌》
[单选题] 纪委委员会议至少( )召开一次,根据工作需要可随时召开。
A.每月
B.每季度
C.半年
D.一年
[判断题]1520. ( )用离心机处理旋流器底流，可回收有用固相，减少淡水和油的浪费。
A.正确
B.错误
[单选题]独立抱杆至少应有（）根拉绳，人字抱杆至少应有（）根拉绳并有限制腿部开度的控制绳，所有拉绳均应固定在牢固的地锚上，必要时经校验合格。
A.三；二
B.三；三
C.四；二
D.四；三
[多选题]某五星级酒店，地下三层，地上五层，建筑高度27m，耐火等级为一级。下列关于该酒店设备用房的布置，不符合规范的是（ ）。
A.酒店使用的常压燃油锅炉房设置在地下二层
B.当酒店内其他部位设置自动喷水灭火系统时，布置在地下二层的柴油发电机房不设置自动喷水灭火系统
C.酒店内的消防控制室采用耐火极限不低于2.00h的防火隔墙和1.50h的楼板与其他部位隔开
D.通风、空气调节机房的门采用甲级防火门
E.酒店内机房设置储油间时，储油间采用耐火极限不低于2.5h的防火隔墙与机房分隔
[判断题]当一个牵引变电所停电时，相邻的牵引变电所能越区供电。
A.正确
B.错误
[单项选择]1岁男婴，因面色苍黄、毛发稀枯3个月，血常规示Hb89/L，中性粒细胞变大并有分叶过多，骨髓象示：幼红细胞巨幼变。为了明确诊断，首先应选择的检查是
A. 血清维生素B12测定
B. 血清铁蛋白测定
C. 血清铁测定
D. 血清维生素B6测定
E. 血清乙酸测定
[单选题]建设工程消防设计审查验收职责移交承接期的截止日期为2019年( )。 ( )
A.4月30日
B.4月23日
C.5月30日
D.6月30日
[单选题]未取下操纵面夹板、挂钩、空速管套、静压孔塞或尾撑杆等而起飞的情况定义为：（ ）
A.运输航空一般事故征候
B.运输航空地面事故征候
C.严重维修差错
D.一般维修差错
[单项选择]前庭大腺囊肿多位于（）
A. 小阴唇外侧或阴蒂两旁
B. 大阴唇后半部
C. 前庭部或小阴唇内侧
D. 大阴唇前半部
E. 阴道前庭间、尿道口周围
[单项选择]Android能实现手机的主屏幕的自定义，但是添加的图标要按照功能属性排列（）
A. 对
B. 错
[单选题]请阅读短文，完成第小题。
For many people, there is a very well-established stereotype that the first-class American universities are simply the best. However, I am not quite convinced of that. When I look back at my academic formation in the USA and compare it to the academic formation some of my friends had at Brazil, I don't feel like I am more prepared than my peers. Thus, I am currently facing adilem of whether to pursue my graduate studies in Brazil or in the US
A.
The difference in our academic backgrounds, however, is the more liberal nature of American education. From my experience at Georgetown, and from what I know of American higher education, there are very few strict requirements imposed on students. Generally speaking, you are relatively free to take whichever classes you want, provided that they are under the scope of your major field of study.
Toil lustrate, I compared the master's degrees in economics from Duke and Fundao Get. Vargas(FGV), a Brazilian university. I chose to present a master's degree comparison here because the short two-year study period makes it simpler than comparing a four-year program. Duke's program works like this: you pick a field of study and then have a required number of courses that you have to take in certain areas. Most of the requirements are not course-specific, but area-specific. With some fields of study, you can skip certain areas altogether. If you choose to get a master's degree in applied economics, for instance, you don't have to take any mathematics courses. In FGV, all economics students need to take the same core structure: Microeconomics 1 through 4, Macroeconomics 1 through 3, Econometrics, Statistics 1 and 2, and Math for Economics 1 and 2. From then on, you can specialize in certain fields, and the elective structure seems to be the same as in Duke: you pick five electives from your main area of interest.
This seems to be the same kind of difference that I noticed comparing what I studied in Georgetown as an undergraduate to what some of my friends studied in their undergraduate careers in Brazil. Now, is this more liberal education good or bad? There are factors pulling it each way, and the ideal solution, in my view, is a reasonable middle ground. What I see happening in American universities, however, is a little too much liberalization. Too much liberty tends to encourage students to take the more "interesting" courses, and ignore those that are considered most "boring". The problem is that many of these "boring" courses are usually foundational courses, which give students the analytical tools they need in order to be truly competent in their fields of study.
In the end, I feel like American universities sometimes delegate too much responsibility to students in terms of choosing their academic careers. For me, this is troubling. Students in their twenties usually have very little experience in the field they are studying, and many times they don't really know the tools they need to succeed in their area of interest. It is certainly the case in my situation. Fortunately, I research and discuss a lot before picking my classes, and was able to take advantage of my liberal American education to build both a strong foundation and take classes that interest me. But is this always the case? From my experience, I think not. What I see happening at Georgetown is that many students just pick the classes they find most interesting, without any real consideration of how it is going to support their overall academic formation. This result is a deficit in fundamentals.
Which of the following can be inferred as the writer' s attitude toward the American higher__________ education?
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A.Biased.
B.Positive.
C.Critical.
D.Negative.
[单选题] 风机启用时需要注意检查的项目是( )。
①电机电流 ②电机温度 ③电机转速和润滑情况
A.只有①
B.②、③
C.①、③
D.①、②、③
[多选题]一审判决于秀胜诉，许宇不服，关于上诉下列表述中正确的是：
A.许宇的上诉理由必须是原判决确有错误
B.许宇应当通过一审法院提出上诉状
C.许宇必须递交书面的上诉状
D.于秀应在收到上诉状副本起15日内提出答辩状
H.于秀被违章驾车的许宇撞伤。于秀诉诸法院向许宇追讨医疗费等相关费用，案件尚在审理。因伤情紧急，医生建议立即进行手术，但于秀家境贫寒无力支付手术费。
[单选题]行政许可材料保管年限为（）年。
A.30
B.10
C.20
D.5
[判断题] ( )燃烧产生的废气是石化行业污染的主要来源之一。
A.正确
B.错误
[单项选择]根据生命周期理论，当企业的投资回报率、销售增长率和市场占有率都迅速提高时，此时零售业态处于（）
A. 创新期
B. 增长期
C. 成熟期
D. 衰退期
[单项选择]我国的交通运输业发展迅速，近年来（）
A. 青藏铁路已全线贯通
B. 沿海货运港口均已改造为集装箱码头
C. 公路的通过能力有了较大提高
D. 除西藏外，全国省级行政中心均建有航空港
[多选题]下列( )是目前公认的岩石爆破理论。
A. 爆炸气体压力作用理论
B. 爆炸应力波反射作用理论
C. 应力波与爆炸气体综合作用理论
D. 岩石结构本身存在缺陷造成的
[单项选择]维生素B2缺乏时，临床表现常以面部五官及皮肤为主，包括（）
A. 口角炎
B. 唇炎
C. 睑缘炎
D. 阴囊炎
E. 以上都是
[判断题]第二种工作票、低压工作票可在进行工作的同时交给工作许可人。
A.正确
B.错误
[单项选择]直接经济损失在300万元以上的质量事故属于（）。
A. -般质量事故
B. 一级重大质量事故
C. 二级重大质量事故
D. 三级重大质量事故
[判断题]水泵控制柜按钮应能启停每台消防水泵，并有向消防联动控制设备反馈水泵状态的信号。( )
A.正确
B.错误
[单选题]在 Windows 系统中，管理权限最高的组是：
A.everyone
B.administrator
C.powerusers
D.users
[单项选择]下列城市位于亚热带的是：（）
A. 拉萨
B. 海口
C. 南京
D. 哈尔滨
