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
2015-01-09
39
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.
【C6】
选项
A、are
B、to be
C、be
D、is
答案
D
解析
本题应选D。从句子来看,它是由only引导的倒装句,状语在句首,真正主语是the lifespan of apatent,是个单数,因此谓语也应为单数形式,所以选is。
转载请注明原文地址:https://kaotiyun.com/show/UsLO777K
0
考博英语
相关试题推荐
Evenifsheisresponsibleforthemistake,sheisnotlikelyto______it.
Wal-MartannouncedThursdayafternoonthatitwouldintroduceaprogramnationwidecalled(61)"PickUpToday"thatallowscustome
Wal-MartannouncedThursdayafternoonthatitwouldintroduceaprogramnationwidecalled(61)"PickUpToday"thatallowscustome
TheimagemanyofusmayhaveofalanguageteacherissomeonedrillingaclassroomfullofteenagersinthefinerpointsofFre
Themoretimescientistsspenddesigningcomputersthemoretheymarvelatthehumanbrain.Tasksthatbaffle(难住)themostadvanc
LivinginthecentralAustraliandeserthasitsproblems,______obtainingwaterisnottheleast.
Arrivinganywherewiththesepossessions,hemightjustaseasily______foramonthorayearasforasingleday.
Formallearningisseparatedfromdailylifeandmayactuallypromotewaysoflearningandthinkingwhichoftenrun______tothos
Themostconvincingevidencefortheimportanceofadultinfluenceonachild’sintelligencecomesfromastudyof"atrisk"chi
随机试题
咳嗽变异性哮喘最重要的诊断条件是
决定CT图像空间分辨力的主要因素是
有关颞下颌关节的描述,哪项是错误的
腹痛病人,为明确有无压痛点应用
美国钢铁企业认为韩国美销售的无缝钢管违反了世贸组织的多边货物贸易协议中的反倾销协议,要求美国政府对韩国在美销售的无缝钢管征收反倾销税。美国政府调查后认为,韩国在美销售的无缝钢管构成倾销。关于该争端解决的规则和程序的表述,正确的选项有()。
在施工项目目标动态控制中,以调整任务分工的方式来进行纠偏的措施属于()。
甲建筑公司派员工参加了乙代理商举办的M绘图软件培训班,该软件由丙软件开发公司研制。培训结束后,该建筑公司向代理商购买了这套软件,则下列说法中正确的是()。
马克思指出:“在同一时间内,劳动就一种属性来说必然创造价值,就另一种属性来说,必然保存或转移价值。”这说的是
Accordingtotheman,whatdoesheneedtodothismorning?
WhatisMr.Bacon’sjobspecifically?
最新回复
(
0
)