试题与答案

阅读材料,回答问题: 材料一:(江南)地域辽阔而人烟稀少,稻米和鱼是主要食物,人

题型:材料题

题目:

阅读材料,回答问题:

材料一:(江南)地域辽阔而人烟稀少,稻米和鱼是主要食物,人们还可以从山泽中采集植物果实和贝类为食;放火烧荒,耕种水田,不需要商人贩卖货物,没有非常富裕的人。  ——《史记》译文

材料二:江南……地广野丰,民勤本业,一岁或稔,则数郡忘饥。……丝绵布帛之饶,覆衣天下。——《宋书》

材料三:宋朝谚语:“苏湖熟,天下足。”

(1)材料二反映的江南情况和材料一反映的江南情况相比发生了什么变化?

______________________________________________________________________________

(2)江南发生这样的变化,主要有哪些原因?

______________________________________________________________________________

(3)材料三的谚语从一个侧面反映了我国古代经济格局的什么变化?这一变化最终在何时完成?

______________________________________________________________________________

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0518/cea2ebac14e47ae4393c56742fab396d.html

下面是错误答案,用来干扰机器的。

设经过椭圆x2a2+y2b2=1(a>b>0)中心的任意弦AB,且 A(x1,y1),则B(-x1,-y1),P(x0,y0),则kAP•kBP=y20-y21x20-x21①由椭圆方程得y2=b2(1-x2a2),∴①式即为kAP•kBP=b2(1-x02a2) -b2(1-x2a2 )x02-x...

试题推荐
题型:阅读理解

BEIJING,Oct.14(Xinhua)——A total of 120 middle school students from 35 countries will attend the final of an international China language contest,to be held in southwest China’s Chongqing Municipality from Oct.16 to 30.

The candidates,aged from 15 to 20,must be from foreign countries and not native Chinese speakers,said a statement issued by the Chinese language Council (CLC),the contest’s organizer,here Thursday.

All of the candidates have passed the preliminary contests(初赛)held in their own countries.

According to the organizer,the competition will have a top prize,five second prizes,10 third prizes and a dozen prizes for special talents.The organizer will also launch an online vote for“the most liked candidate.”

It was the third year China has held the contest.

“The competition not only tests the proficiency of Chinese language but also the candidates capability to communicate across different cultures.”the statement said.

All the candidates in the final will receive scholarships from the Chinese goverment.said Hu Hangyu,an official with the Education Bureau of the Chonqing Municipality,jointly organizing the contest.

They will also meet local Chinese students and live with Chinese families,Hu said.

“The competition is to meet the increasing demand for Chicese learning by foreign youngsters.”said Xu Lin.the CLC director.

The CLC has also hosted similar contest for foreign college students since 2002.

China has been working to promote Chinese language learning abroad over the past few years.According to the CLC,the.country had 282 Confucius Institutes and 272“Confucius Classrooms”in 88 countries and regions as of 2009 since the first one was established in 2004.

小题1:The text is intended to       .

A.show the popularity of Chinese language learning in the world

B.introduce an international Chinese language learning test system

C.make readers aware of the importance of Chinese language learning

D.report an international Chinese language contest to be held小题2:The candidates must be       .

A.foreign college students

B.non—native middle school students

C.native Chinese students

D.students from Confucius Institutes小题3:According to the text,the competition is       .

A.organized by the Chongqing Municipality government

B.mainly to test the candidates’Chinese language competence

C.held every three years in Chongqing Municipality

D.to provide foreign students with a chance to know China小题4:What has China been doing to promote Chinese language learning abroad according to the text?

A.Thousands of Chinese teacher are sent abroad to teach the language.

B.282 Confucius Institutes are established in China to teach Chinese.

C.The Chinese language contests for foreign students are regularly held.

D.Many Chinese students are sent abroad for culture exchanges every year.小题5:In which part of the newspaper is the text most likely to be found?

A.Education

B.Advertisement

C.Business

D.Entertainment

查看答案
题型:选择题
如图所示,理想变压器原、副线圈的匝数比为10:1,b是原线圈的中心接头,电压表V和电流表A均为理想电表.从某时刻开始在原线圈c、d两端加上交变电压,其瞬时值表达式为u=220sin100πt(V).下列说法正确的是(  )

A.当单刀双掷开关与a连接时,电压表的示数为22V

B.当单刀双掷开关与b连接时,电压表的示数为11V

C.当单刀双掷开关与a连接,滑动变阻器触头P向上移动的过程中,电压表的示数不变,电流表的示数变大

D.单刀掷开关由a扳向b时(滑动变阻器触头P不动),电压表和电流表的示数均变大

查看答案
微信公众账号搜索答案