首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
(北京航空航天大学2010年试题) When an invention is made, the inventor has three possible【1】of action open to him; he can give the invent
(北京航空航天大学2010年试题) When an invention is made, the inventor has three possible【1】of action open to him; he can give the invent
admin
2013-12-23
16
问题
(北京航空航天大学2010年试题)
When an invention is made, the inventor has three possible【1】of action open to him; he can give the invention to the world by publishing it, keep the idea【2】, or patent it.
A【3】patent is the result of a bargain【4】between an inventor and the state, but the inventor gets a limited period of monopoly and publishes full details of his invention to the public after that period【5】.
Only in the most exceptional circumstances【6】the lifespan of a patent【7】to alter this normal process of events.
The longest extension ever【8】was to Georges Valensi; his 1939 patent for color TV receiver circuit was extended until 1971 because for most of the patent’s normal life there was no color TV to【9】and thus no hope for reward for the invention.
Because a patent remains permanently【10】after it has terminated, the shelves of the library attached to the【11】office contain details of literally millions of ideas that are free for anyone to use and, if【12】than half a century, sometimes even re-patent. Indeed, patent experts often advise anyone【13】to avoid the high cost of conducting a search through【14】patents that the one sure way of violation of any other inventor’s right is to plagiarize a dead patent. Likewise, because publication of an idea in any other form【15】invalidates further patents on that idea, it is traditionally【16】to take ideas from other areas of print. Much modern technological advance is【17】on these presumptions of legal security.
Anyone closely【18】in patents and inventions soon learns that most "new" ideas are, in fact, as old as the hills. It is their reduction to commercial practice, either through necessity or dedication, or through the availability of new technology,【19】makes news and money. The basic patent for the theory for magnetic recording dates back to 1886. Many of the original ideas behind television originate【20】the late 19th and early 20th century. Even the Volkswagen rear engine car was anticipated by a 1904 patent for a cart with the horse at the rear.
【20】
选项
A、with
B、off
C、before
D、from
答案
D
解析
空格所在句子大意为:电视原理的许多原创思路都——19世纪后期和20世纪初。originate from“起源于,发源于”。根据句意和各个选项的意思可知,正确答案是D。
转载请注明原文地址:https://kaotiyun.com/show/fchO777K
0
考博英语
相关试题推荐
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedth
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedth
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedth
Whenaninventionismade,theinventorhasthreepossiblecoursesofactionopentohim:hecangivetheinventiontothewhole
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
Theeffectofthebabyboomontheschoolshelpedtomakepossibleashiftinthinkingabouttheroleofpubliceducationinthe
AndresearcherssaythatlikethoseliteraryromanticsRomeoandJuliet,theymaybeblindtotheconsequencesoftheirquestsf
随机试题
Nowadays,amateurphotographyhasbecomeatroublingissue.Citizensofrichcountrieshavegotusedtobeingwatchedbyclosed-
建设工程合同是( )合同。
某企业2005年年初以3万元的价格购买了一台新设备,使用7年后发生故障不能正常使用,且市场上出现了技术更先进、性能更完善的同类设备,但原设备经修理后又继续使用,至2015年末不能继续修复使用而报废,则该设备的自然寿命为()年。
下列贷款中,贷款期限上限最高的是()。
下列各项中,按企业所得税法规定应当提取折旧或摊销的有()。
欧文
党的最高纲领是实现共产主义,当前党的最低纲领是()
Refertotheexhibit.WhenPC1sendsanARPrequestfortheMACaddressofPC2,networkperformanceslowsdramatically,andthe
数据库管理系统(DBMS)的层次结构中,数据存取层的处理对象是
What’sthereasonfortheconflictbetweenChinaandtheGreatBritain?
最新回复
(
0
)