普通研究生入学考试《数学》模拟试题(2020-01-04)

发布时间:2020-01-04


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1、当x→0时,...则k=( )。

A、1

B、2

C、3

D、4

答案:C


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圣德太子“宪法”十七条规定的是(  )

A.贵族的身份制度
B.土地制度
C.贵族应遵守的政治规范
D.封建的根本大法
答案:C
解析:
圣德太子自593年担任摄政以后,即致力于提高王权的改革。603年,制定“冠位十二阶”,以整顿朝廷贵族官僚的身份制度,加强朝廷纲纪。第二年,制定。宪法”十七条,作为贵族必须遵守的政治规范。同时号召“笃敬三宝”(佛、法、僧),崇尚佛教,在全国修建许多寺院。为了达到长治久安的目的,圣德太子积极摄取中国文化,直接向中国派遣留学生,还在外交政策上实行了重要改革。所以,正确答案是C。

男性,66岁。两个月来吞咽粗硬食物时有哽噎感,胸骨后烧灼样、针刺样痛,吞咽水后缓解消失。
若患者病情逐渐加重,进行性咽下困难,并出现持续性胸痛或背痛,表示

A.肺门淋巴腺转移
B.纵隔淋巴腺转移
C.骨转移
D.癌已侵犯食管外组织
答案:D
解析:
[考点]食管癌
[分析]根据题干提示,在吞咽粗硬食物时有食物哽噎感、胸骨后疼痛,应高度怀疑早期食管癌。对可疑病例,均应做食管吞稀钡X线双重对比造影。早期病例可见到食管黏膜皱襞紊乱、粗糖或中断;局限性管壁僵硬,蠕动中断;小的充盈缺损或小龛影。中晚期病例则有明显的不规则充盈缺损、狭窄、管壁僵硬等。因此,应首选此检查。如尚不能明确诊断,则可做纤维食管镜检查,可直视下观察病变、取活组织做病理检查,还可同时做染色检查。食管拉网脱落细胞检查是普查筛选时的检查方法,阳性率 90%~95%;超声内镜检查用来判断食管癌的浸润层次,向外扩展深度,以及有无纵隔淋巴结或腹腔内脏器官转移,对估计外科手术可能性有帮助。胸部X线平片对早期食管癌诊断无帮助。若患者病情逐渐加重,进行性咽下困难,并出现持续性胸痛或背痛, 表示癌已侵犯食管外组织,是食管癌的晚期症状。

The last time she was recruiting for her export-sales team,Sarah Grain hired a Lithuanian who speaks Russian,Polish and German.Her two previous hires for Eriez Magnetics,which makes in-dustrial equipment in South Wales,were an Italian who also speaks French,and a Venezuelan who speaks Spanish and Portuguese.All of them speak fluent English."There were no British applicants who had the requisite language skills,"she says.Ms Grain's conclusion is not unusual for a British company.In 2012 a European Commission survey tested the foreign-language proficiency of 54,000 students aged 14 and 15,in 14 nations.Sweden came top,with 82qo of pupils reaching an"independent"or"advanced independent"standard.The average for all 14 states was 42%.England came bottom,with just 9%.Part of the explanation is that many people's second language is English,while many Britons continue to believe that,as native speakers,they do not need to bother with foreign languages.They may be right-in tenns of commurucation.But it means that,not only are they missing out on much cultural interaction,they may also be harming their own job prospects.they have not been helped by the educational policies of successive govemments.In 2004 Tony Blair's hbour govemment abolished the requirement to learn a language after the age of 14,causing the numbers taking a language CCSE exam at 16 to fall by half in state schools over the next seven years.Concerned about this rapid decline,the coalition govemment brought in a new performance indicator called the English Baccalaureate,or EBacc,in 2011.A modern language was one of its five core disciplines.Language teachers-an embattled breed-rejoiced.The number of students ente-ring a GCSE language exam in 2013,the first year the changes took effect,rose by 20%.Now,however,those gains could be lost,as the govemment has seemingly loosened the re-quirement.From 2016,under a new initiative called Progress 8,it has extended the number of core subjects to eight,appearing to make learning a language voluntary.This has pleased some teachers,who felt the EBacc was too narrow,but linguists are shocking.The decline of languages at GCSE has inevitably had an effect higher up the academic food chain.Though the number of those studying languages to A Level will increase thanks to the GCSE cohort of 2013-2014,it is likely to fall back again.French and German are half as popular as they were 20 years ago.The number of universities offering language degrees has fallen,too:by 50%for Cerman and 40%for French since 1998.The number offering Spanish has also fallen.Degrees in other languages,such as Chinese and Arabic,are becoming more popular,but they are still rare.The economy and the labour market bear the consequences.In 2012 the British Chambers of Commerce found,in a survey of 8,000 BriLish companies,that 96%had no foreign-language speakers.First-lime exporters cited language as a barrier to entering intemational markets.Though Britain makes up 12%of the population of the EU,less than 5qo of EU civil servants in Brussels are British.Not enough Bricons can fulfil the language requirement of being able to work in French or Cerman.And even if monoglot Brits can get jobs at multinationals,claims Richard Hardie,non-executive chairman of the British arm of UBS,a bank,"the chances of getting to the top if you only have English are much lower than before".

British Chambers of Commerce found that

A.most British candidates lacked language skills
B.native speakers didn't need to learn foreign languages
C.mastering only one language would be less competitive
D.English had lost its predominance as a foreign language
E.a majority of British firms had no foreign-language speakers.
F.the requirement for students to learn foreign language was unnecessary.
G.students'foreign-language proficiency differed greatly among countries.
答案:E
解析:
根据British Chambers of Commerce定位到第八段,即倒数第二段。该段第二句说In 2012 the British Chambers of Commerce found,in a survey of 8,000 British comparues,that 96%had no foreign-language speakers.该句的British companies-[E]British firms;此外.Had no foreign-language speakers与原文形成原词复现。故该题选择[E]。

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