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2001 年 1 月大学英语四级考试试题及参考答案 Part Ⅰ Listening Comprehension (20 minutes) ? Section A Directions : In this section, you will hear 10 short conversations. At the end of
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Algae naturally produce oil, when its process start with oil turned into bio fuels, an alternative energy source. This is just one snag. Harvesting the oil from algae-float water is prohibitively expensive. But researchers have come up with an effort
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I think the idea of genetic engineering is fascinating. Its also quite dangerous. Fiddling around with what makes us human might make us less human. We could end up creating a Frankensteins monster. The idea of genetic engineering has been around for
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When we announce that Bill Nye would be here to address you 我们宣布比尔奈要来演讲后 Boston Magazine called him the region's best commencement speaker 波士顿杂志将他称为区域最佳毕业典礼演讲嘉宾 And the Today Show high
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84 利用基因技术提高粮食产量 DATE=8-14-01 TITLE=AGRICULTURE REPORT - Genetic Engineering Crop Debate BYLINE=George Grow （Start at 59
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The International Solar Decathlon has concluded in the US Capital of Washington, after 19 teams from 5 countries competed using their own unique designs. A team of university students from China were also there. Here's Wei Tong has more. China's Tong
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