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Who won the World Cup 1994 football game? What happened at the United Nations? How did the critics like the new play? 1 an event takes place, newspapers are on the streets 2 the details.Wherever anything happens in the world, reports are on the spot to 3 the news. Newspapers have one basic 4 , to get the news as quickly as possible from its source, from those who make it to those who want to 5 it.Radio, telegraph, television, and 6 inventions brought competition for newspapers.So did the development of magazines and other means of communication. 7 , this competition merely spurred the newspapers on.They quickly made use of the newer and faster means of communication to improve the 8 and thus the efficiency of their own operations.Today more newspapers are 9 and read than ever before.Competition also led newspapers to branch outsintosmany other fields.Besides keeping readers 10 of the latest news, today's newspapers 11 and influence readers about politics and other important and serious matters.Newspapers influence readers' economic choices 12 advertising.Most newspapers depend on advertising for their very 13 .Newspapers are sold at a price that 14 even a small fraction of the cost ofproduction.The main 15 of income for most newspapers is commercial advertising.The 16 in selling advertising depends on a newspaper's value to advertisers.This 17 in terms of circulation.How many people read the newspaper? Circulation depends 18 on the work of the circulation department and on the services or entertainment 19 in a newspaper's pages.But for the most part, circulation depends on a newspaper's value to readers as a source of information 20 the community, city, country, state, nation, and world—and even outer space. 1.A.Just when B.While C.Soon after D.Before 2.A.to give B.giving C.given D.being given 3.A.gather B.spread C.carry D.bring 4.A.reason B.cause C.problem D.purpose 5.A.make B.publish C.know D.write 6.A.another B.other C.one another D.the other 7.A.However B.And C.Therefore D.So 8.A.value B.ratio C.rate D.speed 9.A.spread B.passed C.printed D.completed 10.A.inform B.be informed C.to be informed D.informed 11.A.entertain B.encourage C.educate D.edit 12.A.on B.through C.with D.of 13.A.forms B.existence C.contents D.purpose 14.A.tries to cover B.manages to coverC.fails to cover D.succeeds in 15.A.source B.origin C.course D.finance 16.A.way B.means C.chance D.success 17.A.measures B.measured C.Is measured D.was measured 18.A.somewhat B.little C.much D.something 19.A.offering B.offered C.which offered D.to be offered 20.A.by B.with C.at D.about
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【单选题】化学在生产和日常生活中有着重要的应用。下列叙述不正确的是
A.
晶体硅是光导纤维、芯片的主要成分
B.
在海轮外壳上镶嵌锌块,会减缓船体的锈蚀
C.
工业上用石灰对煤燃烧后的烟气进行脱硫,并能制取石膏
D.
氯气是合成农药、染料和药品的重要原料
【单选题】研磨缺陷之一是研磨( )。
A.
尺寸不准
B.
形状不准
C.
位置不准
D.
平面成凹形
【单选题】研磨缺陷之一是研磨( )。
A.
位置不准
B.
形状不准
C.
尺寸不准
D.
表面不光洁
【单选题】一名网络管理员在路由器配置模式中输入 service password-encryption 命令。此命令有什么作用?
A.
此命令在密码通过串行 WAN 链路传输时对密码加密。
B.
此命令可防止他人查看运行配置密码。
C.
此命令启用 enable secret password 命令的强加密算法。
D.
此命令会自动加密在 NVRAM 中当前存储的配置文件中的密码。
E.
此命令为需要执行路由器维护的外部服务人员提供专有加密密码。
【单选题】科学家提出硅是 “21 世纪的能源 ” ,这主要是由于作为半导体材料的硅在太阳能发电过程中具有重要的作用。下列关于硅的说法中正确的是( ) A .硅在化学反应中易得到电子 B .自然界中存在大量单质硅 C .高纯度的硅被用于制作计算机芯片 D .光导纤维的主要成分是 Si
A.
B.
C.
D.
D
【单选题】必须坚持________,要借鉴和吸收人类文明成果建设社会主义,不能关起门来搞建设。
A.
对外开放
B.
一国两制
C.
以经济为中心
D.
一个中心两个基本点
【单选题】同源染色体分离和非同源染色体自由组合
A.
同时发生于减数分裂后期I
B.
同时发生于减数分裂后期Ⅱ
C.
同时发生于减数分裂后期I和后期Ⅱ
D.
分离发生于减数分裂后期I,自由组合发生于减数分裂后期Ⅱ
【判断题】坚持对外开放就必须借鉴和吸收人类文明成果建设社会主义,不能关起门来搞建设。
A.
正确
B.
错误
【判断题】零次文献必须公开发表
A.
正确
B.
错误
【简答题】为什么必须坚持对外开放,借鉴和吸收人类文明成果建设社会主义,不能关起门来搞建设?
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