变形库仑场

Mosquitoes Genetically Modified to Prevent Malaria There may soon be a new weapon in the fight against malaria - a genetically-modified mosquito that kills the disease-causing parasite once it becomes infected. Malaria is a leading cause of death wor

发表于:2018-12-16 / 阅读(43) / 评论(0) 分类 VOA标准英语2012年(一月)

[03:47.71]MODERN AGRICULTURE [03:53.59]For thousands of years traditional agriculture in China did not change very much. [04:01.14]Most farms were one-family businesses. [04:05.68]Although China is a very big country, [04:09.84]only seven percent of

发表于:2018-12-18 / 阅读(109) / 评论(0) 分类 高中英语人教版高一

But there is a second option to find ways of creating more bee-friendly enviornment. There is another reseach group at the University of Reading, who are trying a very different approach. Scientists Vicky and Jenny Wickens are investigating a way to

发表于:2018-12-27 / 阅读(34) / 评论(0) 分类 探索与发现2014年

Broadcast:Feb 25, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. The Bush administration has been trying to get the European Union to accept new genetically engineered crops.

发表于:2019-01-02 / 阅读(56) / 评论(0) 分类 VOA2003(上)-社会广角

Jen: Hello and welcome to 6 Minute English from BBC Learning English. I'm Jen and with me today is Neil. Neil: Hello there. Jen: Todays story is all about allergies. If you have an allergy to something, your body reacts to it in a negative way. Do yo

发表于:2019-01-07 / 阅读(63) / 评论(0) 分类 六分钟英语

Under UV light, this mosquito larva reveals a red fluorescent marker in its nervous system, causing eyes and nerves to glow. The marker's presence tells the researchers in Riehle's team that this individual carries the genetic construct rendering it

发表于:2019-01-13 / 阅读(63) / 评论(0) 分类 VOA标准英语2010年(七)月
学英语单词
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amben
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chloromercuribenzoic acid
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computer-oriented cryptanalytic solution
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distomedial
Doctor Foster
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electromechanical timer
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ferrous thiosulfate
final nozzle
frusemides
gamma acid
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glow discharge characteristic
greissinger
high definition
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navigational planning
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olso
particle-slip parameter
pheosiopsis (suzukiana) alishanensis
pink borer
programme chart of subdivisional work
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stylocheilus longicauda
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Teokolin
the first order branching of the main stem
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unbeatably
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yridians