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
When an invention is made, the inventor has three possible【C1】______of action open to him: he can give the invention to the worl
When an invention is made, the inventor has three possible【C1】______of action open to him: he can give the invention to the worl
admin
2012-10-23
21
问题
When an invention is made, the inventor has three possible【C1】______of action open to him: he can give the invention to the world by publishing it, keep the idea【C2】______, or patent it.
A【C3】______patent is the result of a bargain【C4】______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【C5】______
Only in the most exceptional circumstances【C6】______the lifespan of a patent【C7】______to alter this normal process of events.
The longest extension ever【C8】______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【C9】______and thus no hope for reward for the invention.
Because a patent remains permanently【C10】______after it has terminated, the shelves of the library attached to the【C11】______office contain details of literally millions of ideas that are free for anyone to use and, if【C12】______than half a century, sometimes even re-patent. Indeed, patent experts often advise anyone【C13】______to avoid the high cost of conducting a search through【C14】______patents that the one sure way of violation of rely other inventor’s right is to plagiarize a dead patent. Likewise, because publication of an idea in any other form【C15】______invalidates further patents on that idea, it is traditionally【C16】______to take ideas from other areas of print. Much modern technological advance is【C17】______on these presumptions of legal security.
Anyone closely【C18】______in patents and inventions soon learns that most "new" ideas are, in fact, as old as the hills. It is theft reduction to commercial practice, either through necessity or dedication, or through the availability of new technology, 【C19】______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【C20】______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.
【C17】
选项
A、constructed
B、sent
C、anticipated
D、based
答案
D
解析
本题应选D。备选项中,A、B、C三项均不能与on搭配,所以只有选D,即base on“建立在……基础上”。
转载请注明原文地址:https://kaotiyun.com/show/mE9O777K
0
考博英语
相关试题推荐
Hegoesshoppingsofrequentlynotbecauseheisrich,butbecauseheenjoys______politely.
InancientEgyptianpaintings,royalfiguresweredifferentiatedbymakingthemseveraltimeslargermanother.
Deathcomesquicklyinthemountains.Eachwinterholidaymakersarecaughtunawaresastheyhappilyskiawayfromthefixedrun
Deathcomesquicklyinthemountains.Eachwinterholidaymakersarecaughtunawaresastheyhappilyskiawayfromthefixedrun
Greeley’sinjunction"GoWest,youngman?"resultedinamassivemigrationofpopulation,withpeopleoccupyingland______noo
Somepeopleapparentlyhaveanalmostincredibleabilityto______therightanswer.
ItispossibleforstudentstoobtainadvanceddegreesinEnglishwhileknowinglittleornothingabouttraditionalscholarlyme
MostpeoplewhodevelopLymedisease,atick-borneinfectionthat’sendemicinpartsoftheNortheastandMidwest,areeasilycu
Britain’sleadingswimmersarefacingatestoftheir______aswellastheirskillsattheOlympictrialsinSheffield.
Writingtolearnmakesitpossibletoshowlearninginwriting.Muchofthewritingyouwilldoincollegeandatworkwillask
随机试题
治疗慢性粒细胞白血病慢性期的首选药物为
将2.8149修约为三位有效数字将3.25001修约为二位有效数字
当事人约定“甲的儿子如果从外地调回”,甲、乙之间的房屋租赁合同即行终止这一民事法律行为所附的是:()
下列描述不属于数据库的基本特点的是()。
涉税鉴证报告的类型不包括()。
下列属于中国人民银行上海总部职责的有()。
乐府始建于()。
Mr.RobertMorrisManagingEditor,ComputerTrend356HarborRoad,PhiladelphiaDearMr.Morris,Yournewmarketingassistant,M
语法论述语言的结构,英语语法论述英语的结构,法语语法论述法语的结构。
Wecanbeginourdiscussionof"populationasglobalissue"withwhatmostpersonsmeanwhentheydiscuss"thepopulationproble
最新回复
(
0
)