单词:unpatented inventions
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By Jerilyn Watson Broadcast: October 6, 2003 (THEME) VOICE ONE: An office in the United States government has helped protect 1)the property rights of inventors for more than two-hundred years. Its job
丹尼尔和阿美在观看中国古代的四大发明。丹丹觉得那些都是简单的东西,没有什么意义。其实他们的发明者都是一些很聪明的人。那最后丹丹的观点有没有改变呢? Listen Read Learn May: There are so many people that the tickets are all sold out! Daniel: Luckily we
Section C Great Ideas Some of the most important inventions of the past 2,000 years may surprise you. Want to get rich? Become famous? You don't have to be a film star or a basketball player or a musi
Listen Read Learn May: There are so many people that the tickets are all sold out! Daniel: Luckily we got the last two. May: Look, Danny. The Four Great Inventions! Daniel: Gunpowder, compass, the paper making, and the printing. May: I really admire
Section 38 Inventions They say that the world’s first great invention was the wheel. Perhaps we could argue that the discovery of fire was equally as important. Of course we don’t know who invente
THIS IS AMERICA - October 14, 2002: Patents and Inventions By George Grow VOICE ONE: An office of the American government has helped to protect the legal rights of inventors for two- hundred years. Th
Business Biotech patents Taking it personally 商业 生物技术专利 对人下药 A legal fight over a new generation of medicine 新一代药品的法律纠纷 DRUG research is in dark times, as pipelines dry up and development budgets are cut. 但
171.Re: 问“通货膨胀”和“供过于求”的表达方法? 通货膨胀inflation 供过于求,可以用很多表达方式,用单词可以用glut/surplus e.g. There is a glut/surplus of eggs
Biotech patents 生物技术专利 Taking it personally 对人下药 A legal fight over a new generation of medicine 新一代药品的法律纠纷 DRUG research is in dark times, as pipelines dry up and development budgets are cut. But one shaft of