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[题目译文]
下面的哪一项符合文章的意思?
[A] 当一项专利过期之后,在必要时可以重新授予其专利权或延长专利期
[B] 发明者在公布他的发明之前申请专利是非常必要的
[C] 专利拥有者再合法时期之后必须公布其发明的细节
[D] 人们可以从专利局的图书馆中得到关于一项专利发明的所有细节
43. George Valensi’s patent lasted until 1971 because
[A] nobody would offer any reward for his patent prior to that time
[B] his patent could not be put to use for an unusually long time
[C] there were not enough TV stations to provide colour programmes
[D] the colour TV receiver was not available until that time
[答案] B
[解题思路]
乔治•瓦伦西的例子出现在文章第三段“The longest extension ever granted was to Georges Valensi; his 1939 patent for color TV receiver circuitry was extended until 1971 because for most of the patent’ s normal life there was no colour TV to receive and thus no hope of reward for the invention”(延长时间最长的专利批准给了乔治•瓦伦西。他于1939年获准的彩电接收机线路的专利一直延续到1971年,因为在当时这项专利期内没有彩色电视节目可以接收,因此专利无望被采用),显然只有B选项符合原句的意思。
[题目译文]
乔治•瓦伦西的专利一直持续到1971年,因为
[A] 在那个时间以前没有人能够给他颁发任何奖项
[B] 他的专利在一段相当长的时期内不能用于实际用途
[C] 没有很多电视台能够提供彩色节目
[D] 那个时候还没有彩色电视机
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