单词:soil biology
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By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.
Unit 5 My favorite subject is science. [00:09.42]Section B [00:12.42]1a Put these days into the correct order. [00:19.99]1b What subjects do you study at school? [00:26.07]Check ()the subjects. [00:29.27]1c PAIRWORK [00:33.11]Ask and answer questio
abundant [ə'bʌndənt] a.丰富的,充裕的,大量的 biology [bai'ɔlədʒi] n.生物学 community [kə'mju:niti] n.社区,居民 detective [di'tektiv] n.a.侦探(的) exception [ik'sepʃən] n.例外,除外 handful ['hndfl] n.一把,一小
biology class This happened in a university biology class. The professor was explaining that sperm has a high concentration of dextrose. One freshman girl who looked puzzled asked, Then why doesn't it taste sweet? Notes: 1. This happened in a univers
Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t
[00:02.50]Unit 21 Human Biology Culture Corner [00:07.48]Traditional Chinese Medicine [00:09.94]Traditional Chinese Medicine has been practiced [00:12.23]in Asia for the last 2,500 years. [00:15.73]It is safe and effective [00:17.83]and has a holisti