地区效应物种形成

英语口译：最严驾考创最低通过率

Chinas new traffic regulations came into effect last Tuesday. Apart from complaints regarding the new rules on stopping at ayellow light, those preparing to take their driving tests are also feeling under more pressure as aresult of the new traffic l

发表于:2018-12-12 / 阅读(41) / 评论(0)

英语口译

Placebo Effect Update

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(57) / 评论(0)

VOA2003（下）-环境与健康

美联社新闻一分钟 2006-03-29

1. President Bush has announced changes at the White House. Chief of staff Andrew Card has resigned. He'll be replaced by budget chief Joshua Bolten. 2. Former Reagan Defense Secretary Casper Weinberg

发表于:2019-01-08 / 阅读(96) / 评论(0)

美联社新闻一分钟2006

60秒科学:Butterfly Shows Speciation Signs

Butterfly Shows Speciation Sign A study in the journal Science looks at Heliconius butterflies in Ecuador, in which a single gene change that influences mate choice may be the first step in the splitting of the population into two species. Cynthia Gr

发表于:2019-01-30 / 阅读(157) / 评论(0)

60秒科学

学个词Learn a Word 第1257期 outdoor

今天我们要学的词是 outdoor, outdoor is spelled o-u-t-d-o-o-r; outdoor. Outdoor 户外的。Outdoor activities 室外活动。New York City's ban on outdoor smoking, including parks and beaches, went into effect last Monday. 纽约市有关户外

发表于:2019-02-02 / 阅读(54) / 评论(0)

英语单词荟萃

每日一词【753】side effect：副作用

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示，Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革，但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(53) / 评论(0)

英语每日一词

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学英语单词

anabolic hormones

appetite(gastric)juice