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When an invention is made, the inventor has three possible courses of action
When an invention is made, the inventor has three possible courses of action
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2023-08-26
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问题
When an invention is made, the inventor has three possible courses of action open to him: he can give the invention to the world by publishing it, keep the idea a secret, or【B1】______it. A granted patent is the result of a【B2】______struck between an inventor and the state, by which the inventor gets a limited period of【B3】______and publishes full details of his invention to the public after that period【B4】______
Only in the most【B5】______circumstances is the life span of a patent extended to alter this normal process of events. A patent remains【B6】______ public after it has terminated. Indeed, patent experts often advise anyone wishing to avoid the high cost of【B7】______a search through live patents that the one sure way of avoiding violation of any other inventor’s rights is to steal and use a dead patent. Likewise, because publication of an idea in any other form permanently【B8】______further patents on that idea, it is traditionally safe to take ideas from other areas of print.【B9】______. Anyone closely-involved in patents and inventions soon learns that most new ideas are, in fact, as old as the hills.【B10】______that makes news and money. The basic patent for the theory of magnetic recording dates back to 1886.【B11】______. Even the Volkswagen rear engine car was anticipated by a 1904 patent for a cart with the horse at the rear. [br] 【B5】
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答案
exceptional
解析
本句末尾的this normal process of events指代的就是上段中提到的“专利保护是有期限的”。由此可知,只有在极其特殊的情况下,专利保护的期限才可以被延长。exceptional意为“例外的,特殊的”。注意形容词后缀-al。only引导的状语被置于句首,主句需部分倒装,其正常语序应为The life span of a patent is extended to alter…only in…。
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