单词：critical altitudes
【军事、航空学】临界高度
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Our eyes are two of the most important things in our lives. We use them every second we are awake. They help keep us safe, recognize friends, and select things we like. It is possible to lead happy and healthy lives without being able to see, but it
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Project Aims to Study Stratosphere Via Aerospace Firm's Glider A glider designed by Airbus Group successfully completed its maiden flight Wednesday ahead of next years attempt to reach the edge of the space. The ultimate goal is to study the stratosp
VOA标准英语2015年(九月)
Situation Critical 十万火急 by Kevin Lustig In some jobs, danger can appear at any moment. In the blink of an eye, the routine can become perilous. This month, the National Geographic Channel shows us what happens when a normal situation becomes
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The UN has just issued a report saying that six million people in Myanmar need food right now. How critical is the situation? It's a real paradox, because in the same year that Cyclone Nargis devastated the, what had been the rice bowl of Myanmar, th
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Idiom: On a mission 一个人特别关注或者集中精力于某事 Hit the book: Leafy Underutilized Deplete Antioxidant Spinach Critical Lavender formulation
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1. M:Congratulations! I heard your baseball team is going to the Middle Atlantic Championship. W:Yeah, we're all working real hard right now! Q:What is the woman's team doing? A)Training for the Mid-Atlantic Championships. B)Making preparations for a
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In Houston, Flight director Kranz is trying to make sense of the barrage of information. I am completely surrounded with reports coming in that I dont fully understand, but frankly, problems are our business, and I thought we are going to solve these
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高考英语阅读理解得分秘籍 在英语考试中，阅读理解往往是决定成败的关键，巧解阅读理解中关于作者意图、观点、态度的问题是在阅读理解中取胜的关键法宝。 作者观点态度题就是指针对作
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By Greg Flakus Houston 05 March 2008 Hillary Clinton made a stunning comeback in Tuesday's primaries and caucuses, winning decisively in Ohio and Rhode Island and coming out on top of a close race in Texas. John McCain won all four states, to clinch
VOA标准英语2008年（三月）
By Melinda Smith Washington 06 September 2007 In 2006, the World Health Organization issued a report that a critical shortage of doctors and nurses has contributed to severe health problems in Africa and parts of Asia.The report said at least four mi
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空客新飞机挑战新高度 Gliders are like engineless aircraft that are towed by powered planes to a certain height. From there, they use natural updrafts, also called mountain waves, to soar to the sky. That is why their wings are so much longe
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Im 30 years old, and there are several things that life has taught me that I want to share with you. Some of these things Ive known since I was young, some of these things I have learned recently. 我现在30岁了，我想和大家分享一下这些年
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In the Pacific state of Hawaii, U.S. President Barack Obama on Sunday told leaders of the 21 Asia Pacific Economic Cooperation economies that the region will be key to U.S. economic recovery. With much of the formal summit activity, including a worki
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Im 30 years old, and there are several things that life has taught me that I want to share with you. Some of these things Ive known since I was young, some of these things I have learned recently. 我现在30岁了，我想和大家分享一下这些年
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By Scott Stearns Dakar 08 October 2009 Cameroon President Paul Biya (file photo) Authorities in Cameroon have closed a private FM radio station that has been broadcasting illegally from the capital for several months. The station was highly critical
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Cosmic Radiation 上世纪早期，科学家发现一种神秘的辐射形式会破坏他们的实验。后来奥地利物理学家Victor Hess研究发现辐射可能来自天空。后来他多次坐热气球用各种仪器（包括测量放射电荷的
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素材来源：《狗狗旅馆》 寄人篱下的姐弟俩为不能继续养自己的爱犬而烦恼，机缘巧合之下他们发现了一栋被废弃的旅馆，并结识了宠物店工作的戴夫和海瑟，他们四个一起联手，偷偷打造狗
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