单词：authorization constraint
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Electronics come in all shapes and sizesbut theres been a limit on their flexibility. Now, researchers say theyve created electronics that can be shape
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The Philippines appears to be seeking a return to stronger economic relations with the United States. Experts say the change may be designed to balance the Philippines increasing dependence on China. The Philippine Department of Foreign Affairs said
2017年VOA慢速英语(十)月
Little Progress in US Authorization for Fight Against Islamic State CAPITOL HILL U.S. Secretary of State John Kerry says Congress should give President Barack Obama flexibility in combating Islamic State fighters, if and when lawmakers approve a mili
VOA标准英语2014年(十二月)
Shale gas extraction 页岩天然气开采 The need to be seen to be clean 天然气是清洁能源吗？ Natural-gas production is booming, but its green image is in question 天然气生产蒸蒸日上，但它的清洁能源形象却受到质疑 M
经济学人综合
Innovation. Its easy to talk about it its probably one of your departments key goals or built into your companys mission statement but its not so easy to do. Its even harder to make it a habit in your day-to-day workflow. As an innovation consultant
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Finance and Economics Anthony Atkinson: For Poorer, For Richer 财经：安东尼阿特金森：为了穷人，为了富人 Anthony Atkinson, a great British economist died on January 1st, age 72. 安东尼阿特金森，英国伟大的经济学家，
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