单词：triplex reflector
单词：triplex reflector 相关文章
Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w
英语语法 Grammar Girl
[ti:UNIT 1 A Trip to Beijing Lesson 4] [0:01.415]UNIT 1 [0:03.448]A Trip to Beijing [0:07.035]Lesson 4 [0:08.787]How Can We Go to Beijing? [0:12.092]THINK ABOUT IT! [0:13.936]How do you go to school? [0:16.961]How do you like to travel? [0:19.920]How
河北教育初中英语（初中起点）七年级下册
[ti:UNIT 1 A Trip to Beijing Lesson 8] [0:01.395]Unit 1 [0:03.426]A Trip to Beijing [0:06.318]Lesson 8 [0:08.234]Unit Review [0:10.902]Ⅰ. [0:12.257]Building Your Vocabulary [0:15.151]A. [0:16.433]Fill in the blank with the proper word. [0:19.751]Th
河北教育初中英语（初中起点）七年级下册
[ti:UNIT 1 A Trip to Beijing Lesson 3] [0:00.376]UNIT 1 [0:01.925]A Trip to Beijing [0:04.420]Lesson 3 [0:05.957]How Far Is Beijing? [0:08.991]THINK ABOUT IT! [0:10.947]How far is it from your home to your school? [0:15.648]How far is it from your ci
河北教育初中英语（初中起点）七年级下册
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
Tim: You gonna ask me questions or no? Todd: Yeah, actually...I'm just gonna ask you random stuff. OK. So, Tim, you want to talk about road trips! Tim: Yeah, I wanna talk about road trips. Ah, me and my friends, when we were in high school we took a
英语访谈对话
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
迈克尔.杰克逊：Why you wanna trip on me They say I'm different They don't understand But there's a bigger problem That's much more in demand You got world hunger Not enough to eat So there's really no time To be trippin' on me You got school t
迈克尔杰克逊经典歌曲
On a business trip to India, a colleague of mine arrived at the airport in Dilhi. He took a taxi to his hotel, where he was greeted by his hospitable Indian host. The cab driver requested the equivale
英汉幽默故事选读
VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barbara Klein. This week on our program, we remember President Abraham Lincoln. This Thursday is the two hundredth anniversary of his birth. (MUSIC) VO
VOA慢速英语2009年（二）月
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
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Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
BBC Learning English People and Places Alexis Kekeh Alexis:My name is Alexis. Im from Togo. William: and Im William Kremer. Welcome to People and Places! One of my favourite things about living in London is the incredible mix of people that you find
人与地方
Organization, Teamwork, and Communication Facing Business Challenges At Lexmark International From IBM to Independence How do you build a new, independent organization after years of control by a giga
实用英语
By Carolyn Presutti Washington, D.C. 04 January 2008 The Bush administration is providing details of the president's planned nine-day trip to the Middle East, beginning Tuesday. The trip will include his first visit to Israel and the West Bank since
VOA标准英语2008年（一月）
By Gary Thomas Washington 12 June 2006 The United States and its European allies have offered Iran a package of incentives to get Tehran to abandon any ambition to build nuclear weapons. Iran has not rejected the package outright, but is standing fi
2006年VOA标准英语（六月）
On a business trip to India, a colleague of mine arrived at the airport in Dilhi. He took a taxi to his hotel, where he was greeted by his hospitable Indian host. The cab driver requested the equivalent of eight dollars U. S. for the fare, which seem
趣味英语
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
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