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
27
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/6sLO777K
0
考博英语
相关试题推荐
______youpromiseyouwillworkhard,______supportyoutocollege.
TheimagemanyofusmayhaveofalanguageteacherissomeonedrillingaclassroomfullofteenagersinthefinerpointsofFre
Theideaofbuilding"NewTowns"toabsorbgrowthisfrequentlyconsideredacure-allforurbanproblems.Itiserroneouslyassu
Suchchanges,AcombinedwiththeerosionofBthearea’sbarrierislands,andtheBushadministration’spolicyofCopeningupmor
Behaviorsthatwedonotunderstandoftenbecomenearlyinvisible—evenwhen,inretrospect,weseehowtrulystrangetheyare.
Ifyouwantto______apleasantvisit,findoutasmuchaspossibleaboutthemannersandcustomsofyourhostcountry.
Therearethreeseparatesourcesofhazard【1】totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioactivem
Lisastoodmotionlessattheendofthedivingboard,handsathersides,heelsslightlyraised,everymuscle______action.
Everygeologistisfamiliarwiththeerosioncycle.Nosoonerhasanareaoflandbeenraisedalivesea-levelthanitbecomess
Everygeologistisfamiliarwiththeerosioncycle.Nosoonerhasanareaoflandbeenraisedalivesea-levelthanitbecomess
随机试题
社会主义市场经济体制,就是()
急性肺水肿时,吸入酒精湿化氧的目的是_______、_______。
地下电力电缆沟与道路布置的处理方式,下列哪种方式正确?[2001-80]
一般,在()情况下考虑,采用表面助冲加高速水流反冲洗。
业主与设备监理工程师之间的关系,是()。
施工单位A承包了一段某繁忙干线铁路改造工程,内容有桥涵顶进、路基帮宽和轨枕更换等。工程开工后,该施工单位便把其中12+16+12m的桥涵顶进工程的施工任务分包给一家具有专业承包资质的B施工单位施工。顶进施工过程中,线路发生坍塌,造成繁忙干线客运列车脱轨19
1931年中共制定的土地革命路线中对富农的政策是()
Linux系统中,DHCP服务dhcpd的缺省配置文件是(1)。在配置文件中,为特定主机指定保留IP地址的声明语句是(2)。(2)
A、 B、 C、 B本句是询问点完餐过了多久的How疑问句。应该理解Howlong…是询问时长的表达。
AccordingtothisPassage,theumbrellawasprobablyfirstinvented
最新回复
(
0
)