单词:
单词: 相关文章
Researchers have identified a molecule that attracts an insect which carries citrus greening disease. 研究人员确认一种分子可吸引携带黄龙病病毒的昆虫。 This development is expected to help farmers control a disease that has des
Part 2 Important Words and Phrases 第二部分 延伸词汇短语 1.automatic car 1.自动档车 2.manual car 2.手动档车 3.deposit/security hold 3.押金 4.rental agreement 4.租车合约 5.start a car 5.发动车子 6.Insurance 6.保险 7.full
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? On May 19th, President Obama announced a new federal gas mileage standard. He wants the country's entire car and light truck fleet to average 35.5 miles per gallon by 20
Educators integrate environmental action into lesson plans Shelley Schlender | Oakland, California 09 February 2010 Photo: Head-Royce School Head-Royce students grow organic vegetables as well as native plants and trees in the school's 370-square-met
Today, March 12, is the 33rd Arbor Day in China, when the whole nation is involved in the planting campaign. Official statistics show that more than 189 million trees have been planted voluntarily by residents of Beijing over the past 30 years, makin
On May 19th, President Obama announced a new federal gas mileage standard. He wants the countrys entire car and light truck fleet to average 35.5 miles per gallon by 2016. Some reaction was swift and to the point. Heres forlorn Oklahoma Senator Tom