单词：inventors certificate
单词：inventors certificate 相关文章
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
VOA2003（下）-美国人文故事
Water is a necessary resource for the health and survival of living things. But the availability of fresh water is decreasing for much of the worlds population. The United Nations estimates that about 3.6 billion people currently live in areas that f
2018年VOA慢速英语(十)月
One-Person Flying Vehicles Close to Reality 单人飞行器接近成为现实 Smart phones, essentially pocket-sized computers, we already have. Flying drones with cameras are available to everybody. Robots and self-driving cars are just around the c
VOA标准英语2015年(六月)
...the approaches, a book that would surely make America's founders, Founding Fathers proud, maybe laugh a little bit too.The author of Gadget Nation explains why the freedom to go after your dreams can lead to some pretty whacky inventions. Hi,I'm
访谈录2008
Voice 1 Welcome to Spotlight. Im Christy Van Arragon. Voice 2 And Im Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 A busy city street. Ca
环球英语 Spotlight
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
英语口语大赢家
[00:00.74]Unit 4 Inventions and Inventors [00:04.53]Expansion 4 [00:09.77]Exercise 1 [00:12.06]Have you ever asked yourself [00:14.11]why the letters on your computer keyboard [00:16.62]are placed in this strange way? [00:19.42]Why are the keys not o
北师大版初中英语九年级（全一册）
[00:00.90]Unit 4 Inventions and Inventors [00:04.80]Lesson 16 [00:09.87]Exercise 1.2 [00:13.52]Today's competition is about inventors. [00:16.74]I'll describe the inventors and all the four [00:19.58]groups here will guess who I'm describing. [00:22.
北师大版初中英语九年级（全一册）
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
英语大赢家上册
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
This is America
By Claudia Blume Hong Kong 18 March 2007 Buzzing Hong Kong is better known for keeping lights on all night and the Wind turbine air conditioner running full blast, not saving energy. But engineers in the city have introduced an innovative wind energ
2007年VOA标准英语（三月）
EDUCATION REPORT - The GED Certificate By Nancy Steinbach Broadcast: Thursday, May 06, 2004 This is Steve Ember with the VOA Special English Education Report. Another school year is nearing an end in
教育与新闻
This is the VOA Special English Economics Report. Recently, the United States Supreme Court decided a case on the property rights of inventors. The question was whether a business method is enough of an invention to receive a patent. Patents are a fo
2010年VOA慢速英语(七)月
AS IT IS 2015-03-11 New Technology Lets Us Hear Famous Voice from 1880s 新技术让我们听到19世纪80年代著名的声音 Today, March 10th, is the anniversary of the first successful telephone call. Alexander Graham Bell was one of the invento
2015年VOA慢速英语(三)月
Innovation is helping lift some of the world's poor out of poverty. With devices such as foot-powered pumps in Africa and solar panels in India, inventors and entrepreneurs are creating and distributing affordable technology to improve people's lives
VOA标准英语2009年(十二月)
Gadget Inventors Reach Customers Through TV Ads 小工具发明人通过电视广告售出产品 HOUSTON Many of the most innovative gadgets sold in America today are speciality items -- generally marketed through extravagant late-night TV commercial
VOA标准英语2014年(二月)
由历年考研英语真题可知，阅读理解部分的试题中，大多数是针对段落的细节设计的，其目的是为了测试考生对组成段落的主体部分的理解。在每年的考试中，细节题的数量是最多的，大约占
考研英语
the approaches, a book that would surely make America's founders, Founding Fathers proud, maybe laugh a little bit too.The author of Gadget Nation explains why the freedom to go after your dreams can lead to some pretty whacky inventions. Hi,I'm Stev
阅读空间
Teen Inventors Fight Tinnitus Irish teenagers Eimear OCarroll and Rhona Togher developed a treatment they hope will help people with tinnitus, an unpleasant ringing in the ears. Cynthia Graber reports Ever get a ringing in your ears after a loud blas
60秒科学