2017年桂林电子科技大学考博真题概率统计复试题(A)博士研究生考试试题
桂林电子科技大学
2017年硕士研究生复试考试试题
科目代码: 219 科目名称:概率论与数理统计A卷
注意：答案必须全部写在答题纸上，写在试题上无效；答案要标注题号，答题纸要填写姓名和考号，并标注页码与总页数；交卷时，将答题纸与试题一起装入试卷袋，密封签字。
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井下钻探工知识题库
井下钻探工知识题库 一、填空（40题） 1、井下钻探工必须熟悉《煤矿安全规程》和井下工作的一般安全知识，经专门技术培训，考试合格后方可上岗。 2、钻探工要掌握井下打钻、注浆、封孔、煤层注水、防灭火、瓦斯抽放、防突等各种钻孔的施工方法。 3、井下钻探施工前，必须了解工程的设计目的、任务，严格按照作业规程施工。 4、钻进时要严格按照地质技术人员、测量人员标定的孔位及施工措施中规定的方位、角度、孔深等进行施工，不经技术人员同意不得擅自改动。 5、钻探设备的运输在车盘上必须捆绑结实，不得超长、超宽、超高、超重，并符合井下运输规定。 6、安装钻机前要检查、整修设备，并检查加固钻场及周围支架，防止冒顶片帮；清理各种脏杂物，挖好清水池和疏水沟。 7、钻探施工中，各种电气设备必须防爆，机械传动部分要安装防护栏、保护罩。 8、在上山工作面或独头巷道探水时，应有安全躲避洞室及安全撤离措施。 9、在水文异常探查孔施工时，钻场要有照明及专用电话。 10、钻孔开孔前，要检查钻场内有害气体含量，当瓦斯浓度达到或超过1％时，不得开孔。
11、工作人员进入钻场必须首先检查钻场及周围的安全状况，如防水、防火、通风设施等，如有不安全因素，不得开钻。 12、钻探施工过程中，钻探工人穿戴要整齐、利索，衣襟、袖口、裤腿必须束紧。 13、钻探工在施工中禁止用手、脚直接制动机械运转部分；禁止将工具和其他物品放在钻机、水泵、电机保护罩上。 14、钻进过程中，一旦发现“见软”、“见空”、“见水”和变层，要立即停钻，丈量残尺并记录其深度。 15、钻进过程中，若发现孔内涌水时，应测定水压、水量。 16、在提下钻具的过程中，操纵升降机人员必须与其他岗位工紧密配合，互相关照。操作要轻而稳，不得猛刹猛放，不得超负荷作业，不得用手脚去扶摸钢丝绳。 17、在钻进过程中，要及时准确全面地记录各种数据，包括加尺、残尺、孔深、换层深度、涌漏水情况、岩芯采取率、套管下置深度、耐压试验数据、班报表等。 18、煤系底层有承压含水层并有突水危险的工作面，在开采前进行探放水，必须严格按编制的探放水设计及安全措施施工。 19、水文孔施工，必须下置止水套管，必须进行耐压试验，达到设计压力，安装高压闸阀后，方能继续钻进。 20、钻孔内水压过大时，应采取反压和有防喷装置的方法钻进，并有防止孔口管和煤（岩）壁突然鼓出的措施。
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2017年中国社会科学院考博英语真题及详解 PART Ⅰ Cloze (20 points) Directions: Choose the best word(s) for each numbered blank. During the mid–1980s, my family and I spent a (1)_____ year in the historic town of St. Andrews, Scotland. Comparing life there with life in America, we were impressed by a (2)_____ disconnection between national wealth and well-being. To most Americans, Scottish life would have seemed (3)_____. Incomes were about half that in the U.S. Among families in the Kingdom of Fife surrounding St. Andrews, 44 percent did not own a car, and we never met a family that owned two. Central heating in this place (4)_____ south of Iceland was, at that time, still a luxury. In hundreds of conversations during our year there and during three half summer stays since, we (5)_____ notice that, (6)_____ their simpler living, the Scots appeared (7)_____ joyful than Americans. We heard complaints about Margaret Thatcher, but never about being underpaid or unable to afford wants. Within any country, such as our own, are rich people happier? In poor countries, being relatively well off does make (8)_____ somewhat better well off. But in affluent countries, where nearly everyone can afford life’s necessities, increasing affluence matters (9)_____ little. In the U.S., Canada, and Europe, the correlation between income and happiness is, as University of Michigan researcher noted in a 1980s 16–nation study, “virtually (10)_____”. Happiness is lower (11)_____ the very poor. But
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2017英语二真题解析 试题精析 [答案][C] warning 考点：上下文语义理解 解析：空格之后的宾语从句部分“technology is replacing human workers.”结合选项，应该选择warning。其他三项[A] boasting [B] denying [D] ensuring 均不符合此处的语境要求，故均排除。 [答案][A] inequality 考点：上下文语义理解 空格单词后面的句意看到了贫富对比，故作为上文对其进行概括关键应选择inequality。[答案][D] prediction 考点：时态判断 空格之后的内容“holds that the future will be a wasteland of a different sort，”该定语从句是对空格词汇的修饰与说明，既然文中用到了will 这一个表示将来时态的助动词，故答案为prediction。 [答案][A] characterized 考点：后置定语+ 固定搭配 one 4 by purposelessness。其他三项均不符合，故排除。 5.[答案][B] meaning 考点：句间语义理解 Without jobs to give their lives 5 ，people will simply become lazy and depressed.空格所在句后
面的表述与空格前的内容属于并列关系，由逗号连接。答案选择meaning。[A] wisdom [C] glory [D] freedom 这些选项都表示褒义色彩和后面lazy、depressed 矛盾。 6.[答案][B] Indeed 考点：上下文逻辑关系 分析下四个选项可以看出并无体现因果关系故[A] Thus排除，另外instead，nevertheless 表示转折语意，但是上下文逻辑并无体现。故[A]Instead [C] Thus [D] Nevertheless均排除。 7.[答案][C] working 考点：上下文语义理解 One Gallup poll found that 20 percent of Americans who have been unemployed for at least a year report having depression，double the rate for 7 Americans.根据上下文对比的语意对照应该选择working。前面提到unemployed 。此处在进行对比，故选择表示反义呼应的词working。 8.[答案][A] explanation 考点：句内语意理解+固定搭配 some research suggests that the 8 for rising rates of mortality，mental-health problems，and addicting 9 poorly-educated middle-aged people is shortage of well-paid jobs. [答案][D] among 考点：句内语义理解、介词辨析 很明显应该指前者的发生范围。浏览四个选项，among“在....中”表示范围，符合此处语义需要，故为答案。 [答案][C] worry about 考点：上下文语义理解+句内语义理解 Perhaps this is why many 10 the agonizing dullness of a jobless future. [答案][C] necessarily
钻探工程考试题
钻探工程考试重点 1.试叙述钻探方法的种类。 A 根据钻进时取心的特点分类——岩心钻探和不取心(无岩心、无心、全面)钻探。 B 根据钻孔用途分类——按钻探的应用范围分出相应类型。 C 根据钻孔中心线的倾角和方位角分类——垂直孔(上、下垂)、下斜孔、上仰孔、水平孔。 D 根据钻孔位置的分类——地表钻探、水上(河、湖、海)钻探、地下坑道钻探。 E 根据钻孔布置方法分类——丛状钻探、多井筒钻探、多孔底钻探 F 根据破岩形式分类 (1)物理方法破岩：①高温（1400℃～3500℃）、高压（200~250MP ａ）破岩；②用超声波和低声波破岩； ③用爆破、高压水射流等方法破岩。 (2)化学方法破岩：此法使用较少，如溶解、软化岩石等。 (3)机械方法破岩：使用最为广泛，其分类如图1.5所示 G 根据钻进使用的冲洗液分类 ◆ 清水钻进； ◆ 乳化液钻进； ◆ 泥浆钻进(含加重泥浆)； ◆ 饱和盐溶液钻进(钻盐井，以防溶解岩心和孔壁)； ◆ 空气钻进； ◆ 泡沫钻进； ◆ 雾化钻进； ◆ 充气泥浆钻进(降低泥浆比重，以防漏失) 2.为何大直径灌注桩需使用反循环成孔？（10分） 反循环：泥浆由孔口进入，利用泵吸、气举等措施抽吸泥浆，泥浆携带钻渣由钻杆上升进入泥浆池 反循环本身所具有的特点，给提高成孔效率、成桩质量和综合经济效益等方面带来一系列的好处。 3.试比较液动冲击钻进与风动冲击钻进的特点？ 液动冲击器与气动冲击器的比较 冲击钻进 手动冲击钻进 机械冲击钻进 冲击器钻进 钻机钻进 液动冲击器钻进 风动冲击器钻进 回转钻进 手动回转钻进 机械回转钻进 深井回转钻进 硬质合金钻进 钻粒钻进 金刚石钻进 螺旋钻进 震动钻进 转盘钻进 井底发动机钻进 涡轮钻进 螺杆钻进 电钻进 其它 冲击回转钻进 图1.5 机械破碎岩石的钻探方法分类
武汉大学2017博士英语
武汉大学 2017年攻读博士学位研究生外语综合水平考试试题 （满分值100分） 科目名称：英语科目代码：1101 注意：所有的答题内容必须写在答案纸上，凡写在试题或草稿纸上的一律无效。 Part I Reading Comprehension (2’×20 = 40 points) Directions:In this part of the test, there will be 5 passages for you to read. Each passage is followed by 4 questions or unfinished statements, and each question or unfinished statement is followed by four choices marked A, B, C and D. You are to decide on the best choice by blackening the corresponding letter on the ANSWER SHEET. Passage One Mr Gordon is right that the second industrial revolution involved never-to-be-repeated changes. But that does not mean that driverless cars count for nothing. Messrs Erixon and Weigel are also right to worry about the West’s dismal recent record in producing new companies. But many old firms are not run by bureaucrats and have reinvented themselves many times over: General Electric must be on at least its ninth life. And the impact of giant new firms born in the past 20 years such as Uber, Google and Facebook should not be underestimated: they have all the Schumpeterian characteristics the authors admire. On the pessimists’ side the strongest argument relies not on closely watching corporate and investor behavior but rather on macro-level statistics on productivity. The figures from recent years are truly dismal. Karim Foda, of the Brookings Institution, calculates that labor productivity in the rich world is growing at its slowest rate since 1950. Total factor productivity (which tries to measure innovation) has grown at just 0.1% in advanced economies since 2004, well below its historical average. Optimists have two retorts. The first is that there must be something wrong with the figures. One possibility is that they fail to count the huge consumer surplus given away free of charge on the internet. But this is unconvincing. The official figures may well be understating the impact of the internet revolution, just as they downplayed the impact of electricity and cars in the past, but they are not understating it enough to explain the recent decline in productivity growth. Another, second line of argument that the productivity revolution has only just begun is more persuasive. Over the past decade many IT companies may have focused on things that were more “fun than fundamental” in Paul Krugman’s phrase.But Silicon Valley’s best companies are certainly focusing on things that change the material world.
2017年考研英语二真题及答案解析
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《概率论与数理统计》期末考试试题及解答
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4.危险物品的生产、经营、贮存单位、矿山、建筑施工单位主要负责人必须进行安全资格培训，经安全生产监督管理部门或法律法规规定的有关主管部门考核合格并取得( )后方可任职。 A、安全工程师职称证书 B、安全专业学历 C、安全资格证书 D、安全知识培训证书 5. 劳动者有权拒绝（）的指令。 A、安全人员 B、违章作业 C、班组长 6.国务院有关部门应当按照保障安全生产的要求，依法及时制定有关的国家标准或者（） A、地方 B、行业 C、企业 7.特种劳动防护用品目录由( )确定并公布。 A、国务院 B、国家安全生产监督管理总局 C、劳动与社会保障部 D、国家标准委员会 8.安全防护装置如发现损坏，应( )。 A、将它拆除 B、立即通知有关部门修理 C、不予理会 9.各种防护设施、安全装置应当齐全完好，外露的（）部位应设置可靠的防护罩或者防护栏杆。（）设备应安装在干燥、清洁、通风良好的地方。
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2017年MBA联考英语二真题及答案
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概率论期末考试试题
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2017年钻探工考试试题
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概率论与数理统计期末考试题及答案
创作编号： GB8878185555334563BT9125XW 创作者： 凤呜大王* 模拟试题一 一、 填空题（每空3分，共45分） 1、已知P(A) = 0.92, P(B) = 0.93, P(B|A ) = 0.85, 则P(A|B ) = 。 P( A ∪B) = 。 3、一间宿舍内住有6个同学，求他们之中恰好有4个人的生日在同一个月份的概率： ；没有任何人的生日在同一个月份的概率 ； 4、已知随机变量X 的密度函数为：, ()1/4, 020,2 x Ae x x x x ??
8、设总体~(0,)0X U θθ>为未知参数，12,,,n X X X 为其样本， 1 1n i i X X n ==∑为样本均值，则θ的矩估计量为： 。 9、设样本129,, ,X X X 来自正态总体(,1.44)N a ，计算得样本观察值10x =， 求参数a 的置信度为95%的置信区间： ； 二、 计算题（35分） 1、 (12分)设连续型随机变量X 的密度函数为： 1, 02()2 0, x x x ??≤≤?=???其它 求：1）{|21|2}P X -<；2）2 Y X =的密度函数()Y y ?；3）(21)E X -； 2、(12分)设随机变量(X,Y)的密度函数为 1/4, ||,02,(,)0, y x x x y ?<<??
2017年北京清华大学考博英语真题
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