[单选题]下列假设检验哪一个属于左侧检验 ( ). A、 H0:μ=μ0H1:μ≠μ0 B、 H0:μ≥μ0H1:μ<μ0 C、 H0:μ≤μ0H1:μ>μ0 D、 H0:μ>μ0H1:μ≤μ0
[问答题]2002年2月,美国一所中学28名学生在完成一项生物课作业时,从互联网上抄袭了一些现成的资料,被任课女教师发现,判这28名学生生物课得零分.他们还将面临留级的危险.在一些学生家长的抱怨和反对下,学校要求女教师提高学生的分数,女教师愤然辞职.学校有近一半的老师表示,如果学校要求老师改分数,他们也将辞职.教师们认为:教育学生成为诚实的公民比通过一门生物课的考试更为重要.社会上一些公司也要求学校公布这28名学生的名单,以确保公司永远不录用这些不诚实的学生.讨论:案情说明了什么?女教师为什么要这样做
[阅读理解]Bright Sparks(1) By the time Laszlo Polagar’s first baby was born in 1969 he already had firm views on child-rearing. An eccentric citizen of communist Hungary, he had written a book called “Bring up Genius!” and one of his favorite sayings was “Geniuses are made, not born”.(2) An expert on the theory of chess, he proceeded to teach little Zsuzsa at home, spending up to ten hours a day on the game. Two more daughters were similarly hot-housed. All three obliged their father by becoming world-class players. The youngest, Judit, is currently ranked 13th in the world, and is by far the best female chess player of all time.(3) Would the experiment have succeeded with a different trio of children? If any child can be turned into a star, then a lot of time and money are being wasted worldwide on trying to pick winners.(4) America has long held “talent searches”, using test results and teacher recommendations to select children for advanced school courses, summer schools and other extra tuition. This provision is set to grow. In his state-of-the-union address in 2006, President George Bush announced the “American Competitiveness Initiative”, which, among much else, would train 70,000 high-school teachers to lead advanced courses for selected pupils in mathematics and science. Just as the super powers’ space race made Congress put money into science education, the thought of China and India turning out hundreds of thousands of engineers and scientists is scaring America into stimulating its brightest to do their best.(5) The philosophy behind this talent search is that ability is innate; that it can be diagnosed with considerable accuracy; and that it is worth cultivating.(6) In America, bright children are ranked as “moderately”, “highly”, “exceptionally” and “profoundly” gifted. The only chance to influence innate ability is thought to be in the womb or the first couple of years of life. Hence the craze for “teaching aids” such as videos and flashcards for newborns, and “whale sounds” on tape which a pregnant mother can strap to her belly.(7) In Britain, there is a broadly similar belief in the existence of innate talent, but also an egalitarian (平等主义的) sentiment which makes people queasy about the idea of investing resources in grooming intelligence.(8) Teachers are often opposed to separate provision for the best-performing children, saying any extra help should go to stragglers. In 2002, in a bid to help the able while leaving intact the ban on most selection by ability in state schools, the government set up the National Academy for Gifted and Talented Youth. This outfit runs summer schools and master classes for children nominated by their schools. To date, though, only seven in ten secondary schools have nominated even a single child. Last year all schools were told they must supply the names of their top 10%.(9) Picking winners is also the order of the day in excommunist states, a hangover from the times when talented individuals were plucked from their homes and ruthlessly trained for the glory of the nation. But in many other countries, opposition to the idea of singling out talent and grooming it runs deep. In Scandinavia, a belief in virtues like modesty and social solidarity makes people flinch from the idea of treating brainy children differently.(10) And in Japan there is a widespread belief that all children are born with the same innate abilities - and should therefore be treated alike. All are taught together, covering the same syllabus at the same rate until they finish compulsory schooling. Those who learn quickest are expected then to teach their classmates.(11) Statistics give little clue as to which system is best. The performance of the most able is heavily affected by factors other than state provision. Most state education in Britain is nominally non-selective, but middle-class parents try to live near the best schools. Ambitious Japanese parents have made private, out-of-school tuition a thriving business. And Scandinavia’s egalitarianism might work less well in places with more diverse populations and less competent teachers. For what it’s worth, the statistical data suggest that some countries, like Japan and Finland, can avoid selection and still thrive. But that does not mean that any country can ditch selection and do as well.(12) Mr. Polgar thought any child could be a prodigy given the right teaching, an early start and enough practice. Some say the key to success is simply hard graft. Judit, the youngest of the Polgar sisters, was the most driven, and the most successful; Zsofia, the middle one, was regarded as the most talented, but she was the only one who did not achieve the status of grand master. “Everything came easiest to her,” said her older sister. “But she was lazy.”In this section, there are ten incomplete statements followed by four choices marked A, B, C and D. Choose the best answer and write the corresponding letter on your Answer Sheet. 1. In their childhood, the three daughters of Polagar _____. A. played chess in house all day long B. had plenty of intense training on chess C. took various lessons on games in house D. revealed their talent in playing chess2. In paragraph 3, the author tends to _____ Polagar’s view on child-rearing. A. support B. despise C. question D. defend3. In America, student winners are usually picked out on the basis of _____. A. test results and praises from teachers B. teacher recommendations and test papers C. test scores and teacher recommendations D. self-presentation and teachers’ evaluations4. The American “talent searches” is based on the belief that _____. A. there is no innate ability B. few have inborn talent C. education can help develop talent D, one’s innate ability can be measured5. In paragraph 7, the word “queasy” is closest in meaning to _____. A. curious B. worried C. unhappy D. comfortable6. According to the passage, in Britain, _____. A. state schools are forbidden to select winners by talent B. state schools are allowed to select students by ability C. secondary schools are eager to pick talented students D. the government is entitled to picking talented children7. In paragraph 8, the word “outfit” is closest in meaning to _____. A. corporation B. community C. government D. organization8. In Scandinavia, people value virtues like modesty and social solidarity, so they _____. A. approve of the idea of selecting different brains B. single out the talented children from the dull ones C. refuse to teach talented children in normal ways D. avoid picking talented children for special education9. In paragraph 11, the word “ditch” is closest in meaning to _____. A. abandon B. embrace C. welcome D. denounce10. Of the Polgar sisters, _____. A. all achieved the status of grand master B. two became world-class chess players C. the youngest was the most diligent one D. the eldest was under the greatest pressure
[问答题]设某路由器建立了如下路由表(这三列分别是目的网络、子网掩码和下一跳路由器,若直接交付则最后一列表示应当从哪一个接口转发出去):128.96.39.0 255.255.255.128 接口0128.96.39.128 255.255.255.128 接口1128.96.40.0 255.255.255.128 R2192.4.153.0 255.255.255.192 R3*(默认) R4现共收到5个分组,其目的站IP地址分别为:(1)128.96.39.10(2)128.96.40.12(3)128.96.40.151(4)192.4.153.17(5)192.4.153.90试分别计算其下一跳.
[多选题]吗啡的临床应用有A.心肌梗死引起的剧痛B.严重创伤痛C.心源性哮喘D.止泻
[单选题]图示各杆均为圆形截面细长压杆.已知各杆的材料及直径相等,问哪个杆先失稳.( )、 AB、 BC、 CD、 一同失稳
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[多选题]连锁经营企业的发展要考虑的因素A.资本因素B.方向因素C.速度因素D.方式因素
[单选题]在投标定价中,应以( )时的价格为最佳报价.A.成本最低 B.目标利润最高C.中标概率最大D.预期利润最大
[单选题]随着钢材厚度的增加,下列说法正确的是( ).A 钢材的抗拉,抗压,抗剪,抗弯强度均下降B 钢材的抗拉,抗压,抗弯强度提高,而抗剪强度有所下降C 视钢材牌号而定D 钢材的抗拉.抗压,抗剪,抗弯强度均有所提高
[单选题]景栽的首要问题是( ) A、 庭园花木如何发挥观赏效能 B、 景栽品种的选择 C、 景栽的位置要求 D、 景栽的功能要求
[单选题]下列哪个药物能连体双胎A.克霉唑B.制霉菌素C.酮康唑D.灰黄霉素
[填空题]进行钢筋混凝土双筋梁的设计计算时,如果χ<2a's,说明___________
[单选题]下列选项中不是无形资产的特性的是( ).A.无物质实体 B.非流动性C.单独不能获得收益D.可由多个主体占有
[问答题]成交的主要方法有哪些
[单选题]《渔夫和金鱼的故事》的作者是( ) A、 普希金 B、 林格伦 C、 亚历山大·亚兰·米尔恩 D、 阿·托尔斯泰
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[单选题]肺切除术前护理,下列哪一项是错误的A.术前训练病人学会胸式呼吸B.对慢性肺部化脓性疾病,应使用抗生素控制感染C.痰多者可服祛痰剂,鼓励其咳嗽及体位引流D.慢性肺结核病人,术前应抗痨治疗1周以上
[单选题]墙在园林建筑中一般系指____________和____________而言.( ) A、 围墙和屏风 B、 山墙和屏风 C、 围墙和屏壁 D、 假山和屏风
[多选题]建筑行业常说的三通一平是指( ).通路通水通电平整施工场地
[单选题]地图的分类包括( )A地形图、地理图B地理图、机械图C机械图、专题图D专题图