首页
登录
职称英语
When an invention is made, the inventor has three possible 【C1】______ of ac
When an invention is made, the inventor has three possible 【C1】______ of ac
游客
2025-04-26
25
管理
问题
When an invention is made, the inventor has three possible 【C1】______ of action open to him: he can give the invention to file 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 any 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 modem 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. [br] 【C6】______
选项
A、are
B、to be
C、be.
D、is
答案
D
解析
这是一个only引导状语放在句首的倒装句,故此处应该填be的正确形式,主语是 the lifespan of a patent,故应该选单数的形式is。
转载请注明原文地址:https://tihaiku.com/zcyy/4054980.html
相关试题推荐
Futurescientificdiscoverieswillmakepossiblethefurtherprolongationofthe
Thereareseveralpossibleexplanationsforthegreaterjob______inJapanincon
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
Whenaninventionismade,theinventorhasthreepossible【C1】______ofactio
随机试题
A、Theinfluenceofvolcaniceruptionsonglobalweatherpatternsisalmostcompl
BasicsaboutSpringBreakSafety1.Travelsafety■Validdriving【T1】______
这辆自行车刚开始骑可能有点不舒服,但那种感觉很快就会消失。(wearoff)Thebikemaybealittleuncomfortableto
资料:甲企业为制造企业,属于增值税一般纳税人,适用的增值税税率为13%,2009
小儿重症肺炎不能进食时,合适的补液为()A.林格液 B.2:1等张液
什么叫“青枝骨折”?
肾小球滤过的葡萄糖被重吸收最多的部位是A.远曲小管B.集合管C.髓襻升支D.髓襻
A.皮肤 B.骨骼 C.肝脏 D.肾脏 E.小肠合成1,25-(OH)-
税务行政规章对非经营活动中的违法行为设定罚款()。A.不得超过1000元 B
根据《中华人民共和国环境影响评价法》《规划环境影响评价条例》和相关文件,关于跟踪
最新回复
(
0
)