单词：public system engineering
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Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there wil
大学四级英语考试听力真题
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
纯正英语一分钟
And it seems to me that the first question 我的看法是， is entirely a biology question, 第一个问题完全是生物学的问题， and it's extremely hard to answer. 这是非常难回答。 One has to be very speculative, 一个人必须非常
TED演讲科学篇
Engineered devices are all around us. From cell phones and computers to hybrid cars and deep-water oil platforms, advances in engineering are profoundly changing our lives. But concerns are growing that public understanding of how these technologies
VOA标准英语2010年(七)月
Engineered devices are all around us. 我们身边全是机械电子产品。 From cell phones and computers to hybrid cars and deep-water oil platforms, advances in engineering are profoundly changing our lives. But concerns are growing that public
VOA双语新闻 2010年8月
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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