单词：ring furrow
单词：ring furrow 相关文章
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
Oil spill, Day 42 of this oil spill in the Gulf of Mexico. Still there is no end in sight for this crisis. Right now take a look with me. Work under water and under way to place a custom built dome over that ruptured well. Remember that effort top ki
CNN2010年(六)月
Congressional investigators say three previously undisclosed defects in a critical safety device may have contributed to the massive oil spill in the Gulf of Mexico. The rig was owned by Transocean and leased by energy company BP. NPR's Peter Overby
2010年NPR美国国家公共电台5月
Study: No Evidence Hydraulic Fracturing Pollutes Water A new study finds no evidence that the controversial practice to extract natural gas known as hydraulic fracturing is contaminating ground water. The report, Separating Fact from Fiction in Shale
VOA标准英语2012年(二月)
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
科技之光
How oft, when thou, my music, music play'st, Upon that blessed wood whose motion sounds With thy sweet fingers, when thou gently sway'st 你是我的音乐，当你在幸运的琴键上弹奏乐章，你轻柔的手指拂过键盘，于是琴弦上随指
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