单词：backcross method of breeding
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>She’ll be comin’ round the mountain she comes. She’ll be comin’ round the mountain she comes. She’ll be comin’ round the mountain She’ll be comin’ round the mountain. She’ll be comin’ round the mountain she comes. She’ll be driv
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Throughout the winter, adults come and go from their traditional breeding colonies. Antarctica is home to 2 million Kings. In this one colony alone, there are 600,000 of them. These engaging chicks ar
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There are twice as many giant pandas as before. [00:06.73]Section 1 Before You Read [00:09.56]PAIRWORK [00:11.23]A national treasure is something that is [00:13.77]important to a country's history or culture. [00:17.43]Think of three more of China's
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Last year, I took up the hobby of birding or birdwatching after my friend took me out to observe some birds out near the lake. Basically, birding involves observing birds in their natural habitat. (Actually, you don't need to leave your backyard to o
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RIO DE JANEIRO, Feb. 24 (Xinhua) -- Various Brazilian cities are turning to mobile apps in the fight against the Aedes Aegypti mosquito, which transmits the Zika virus, chikungunya and dengue, a local official said. While an app does not replace the
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This is the VOA Special English Agriculture Report. Scientists are working to develop crop plants that can reduce the amount of water used for agriculture. Almost sixty percent of the world's freshwater withdrawals from rivers, lakes and other water
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Voice 1 Welcome to Spotlight. Im Rena Dam. Voice 2 And Im Liz Waid. 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 There is a large square stone near a
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Tasmanian Devils, pygmy-possums and native parrots are just some of Australia's threatened species. But thanks to a successful breeding season, one animal sanctuary is optimistic for the future survival of these creatures. Our reporter Li Dong has th
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歌词如下： She'll be coming round the mountain, When she comes,(Toot, toot!), She'll be coming round the mountain, When she comes,(Toot, toot!), She'll be coming round the mountain, She'll be coming round the mountain, She'll be coming round the
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歌词如下： She'll be coming round the mountain, When she comes,(Toot, toot!), She'll be coming round the mountain, When she comes,(Toot, toot!), She'll be coming round the mountain, She'll be coming round the mountain, She'll be coming round the
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This is AP news. President Barack Obama encouraged job secrets in Pennsylvania, saying the latest employment figures are just the start what he hopes is good news. New statistics show only a moderate shielding of 11000 jobs last month. The unemployme
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We do a show based on somebody's mother. You know, my mother said she saw ,and wed end up doing it. Who has comments about the stories they just heard? Raise your hand. We go to beauty shops where we all, you know, got our hair done and got your nail
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The International Atomic Energy Agency is making a push for an unusual type of technology, using radiation to produce higher yielding and hardier plants. Lisa Bryant has more on the technology that the IAEA says could help reduce hunger affecting mi
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A: How's John? B: He's very sick. The doctors are keeping him for several days. A: Have you visited him yet? B: I'm going there today. Would you like to go with me? A: I would like to, but I think I'm coming down with a cold. B: Then you should stay
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模仿文本： Well, The EU's Home Affairs commissioner has warned of staggering levels of corruption in member countries.Presenting the first EU-wide anti-corruption reports,Cecilia Malmstrom said the problem eroded trust in democratic institutions
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