单词：diel vertical migration
单词：diel vertical migration 相关文章
[00:03.58]You will hear three pieces of recorded material. [00:08.33]Before listening to each one,you will have [00:12.41]time to read the questions related to it. [00:16.85]While listening,answer each question by choosing A,B,C or D. [00:23.41]After
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Vertical Gardens 垂直花园 by Marcus Maurice More than 30 years ago, a French scientist named Patrick Blanc went to Thailand to study plants. This adventurous young man traveled to the heart of a tropical rainforest and set up a platform at the to
常春藤解析英语
Ladies, how many times a day do you fix your bra straps, or have you ever wished you could get a little more cleavage? Well, odds are you're wearing a bra that doesn't fit right. We sent a few brave w
万花筒2006年
Oil Wealth Attracts Businesses to North Dakota 石油财富吸引企业进驻北达科他州 WILLISTON, NORTH DAKOTA The state of North Dakota has one of the lowest unemployment rates in the country, thanks to a glut of jobs created by the oil boom i
VOA标准英语2014年(八月)
[00:43.37]Michael / Lincoln [00:55.69]Lincoln [01:08.51]I found our access to the infirmary building, [01:10.29]but I'm going to need some time to make it work. [01:12.48]How much time? [01:13.43]Enough for me to find my way [01:14.46]up a 20 foot v
越狱第一季
No matter how hard you try, chances are you'll still be looking at some leftovers from holiday dinner. 不管你如何努力，节日晚宴过后你很可能还是要处理一些剩饭剩菜。 But you can avoid eating endless turkey sandwiches and m
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This mother bear's experience gives her family a good chance of survival until spring arrives. They will return again and again as the thaw releases more fish. On the warmer plains and valleys that surround the plateau, grazers are on the move. They
自然百科2012年
Hot water scorches and drowns the roots of trees encroaching on the valleys. It can keep the forests in check and the rich pastures / open. Those pastures now produce the new grass needed to make rich milk and feed a bison baby boom. The few calves b
自然百科2012年
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium. The mosquitoes do have immune sy
Scientific American(三)月
Television manufacturers are desperate to find something to jolt their moribund market. Global TV shipments declined 6% in 2012, according to NPD DisplaySearch. And this year isn't likely to be much better. Now Sony (SNE), Samsung, Toshiba, and LG ar
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By Kari Barber Dakar 01 March 2007 President Abdoulaye Wade comments after winning re-election Senegal's President Abdoulaye Wade has declared the winner in last Sunday's ballot by election officials who gave him nearly 56 percent of the vote. Resul
2007年VOA标准英语（三月）
These 60 paintings tell about the movement of African-Americans in the first half of the 20th century. Transcript of radio broadcast: 06 July 2008 VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barb
VOA慢速英语2008年（七）月
South Korea Researches Vertical Farming for Food Security Agriculture in high-rise buildings is the dream of some scientists and architects around the globe. But it soon could be reality. Just outside of Suwon, a city 30-kilometers south of the capit
VOA标准英语2012年(四月)
石油财富吸引企业进驻北达科他州 The state of North Dakota has one of the lowest unemployment rates in the country, thanks to a glut of jobs created by the oil boom in the western part of the state, which rests on one of the largest shal
VOA双语新闻 2014年8月
But that pales into insignificance, when compared to the daily vertical migration of these mircoscopic animals called zooplankton. At sunset, all of these tiny creatures swin upwards, and under cover of darkness, they grease on floating algae close t
自然百科2014年
By Scott Bobb Johannesburg 08 November 2007 The European Union has announced a plan to admit 20-million skilled workers during the next 20 years in order to meet projected labor shortages. The proposal has drawn protests from leaders in developing na
VOA常速英语2007年（十一月）
By Anjana Pasricha New Delhi 16 October 2006 Nepalese Home Minister Krishna Prasad Sitaula, left, and Maoist rebels spokesperson Krishna Bahadur Mahara, address a joint press conference in Katmandu, October 12, 2006 Nepal's government and communist
2006年VOA标准英语（十月）
Flying cars has always captivated the world's imagination. Now, one company claims it is one step closer to making the technology a reality after releasing new designs for its revolutionary vehicle known as the TF-X. 飞行汽车一直以来都吸引着
英语新闻
Imagine if the only way for you to eat were to trek twenty-five miles on foot to a restaurant and then trek all the way back home afterwards. Imagine that this restaurant is a buffet, so you can't carry anything home in a doggie bag--you carry only w
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