N-异丁苯胺；异丁胺苯；N-苯异丁胺

VOA标准英语2012--Small-Scale Irrigation Nets Large-Scale Payoff

Small-Scale Irrigation Nets Large-Scale Payoff A new study shows small-scale irrigation systems could boost farmers incomes by billions of dollars in sub-Saharan Africa and South Asia. The research was discussed at the World Water Week conference in

发表于:2019-01-13 / 阅读(77) / 评论(0)

VOA标准英语2012年(八月)

TED演讲:梵高《星月夜》背后隐藏的数学理论(2)

But our brains' primate subdivision will see the contrasting colors without blending. 但视觉皮质中演化的分支会区辨颜色对比而不会将他们混合。 With these two interpretations happening at once, 当两种视觉处理方式同时发

发表于:2019-01-17 / 阅读(34) / 评论(0)

TED演讲教育篇

经济学人105:智力测试叫谁是笨蛋呢?

Science and Technology Intelligence testing Who are you calling bird-brained? 科技智力测试叫谁是笨蛋呢？ An attempt is being made to devise a universal intelligence test 人类正尝试设计一种通用的智力测验 WHAT is the IQ o

发表于:2019-01-26 / 阅读(68) / 评论(0)

经济学人科技系列

Shanghai unveils official microblog to serve the public

SHANGHAI, Nov. 28 (Xinhua) -- The Shanghai municipal government Monday launched the microblog Shanghai City on China's popular Twitter-like microblogging service Weibo.com. The microblog, officially verified as originating from the Information Office

发表于:2019-02-01 / 阅读(77) / 评论(0)

英语新闻

China shuts down 97,000 blog, microblog accounts in anti-porn campaign

China shuts down 97,000 blog, microblog accounts in anti-porn campaign BEIJING, Sept. 28 (Xinhua) -- Chinese authorities have shut down about 97,000 blog and microblog accounts over the past seven months which are allegedly involved in dissemination

发表于:2019-02-02 / 阅读(76) / 评论(0)

英语新闻

学个词Learn a Word 第1700-large-scale

今天我们要学的词是 large-scale。Large-scale 大规模的。The police busted a large-scale drug-trafficking ring. 警察捕获了一个大型毒品走私集团。Russia said that it is not planning a large-scale evacuation of its citizens l

发表于:2019-02-07 / 阅读(76) / 评论(0)

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