单词：period of optical cycle
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Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr
(科普英语)Earth and Sky
Fire Cycle 火灾规律 The El Nino phenomenon of 1997-98 unleashed torrential rain in some parts of the world, while creating abnormally dry conditions in others. And it sparked record numbers of wildfires. Learn more about climate and wildfire -- toda
(科普英语)Earth and Sky
考试日期： 2012年10月13日 Reading Passage 1 Title: 农村旅游（20110226老题） Question types: 段落信息配对题；完成句子；Summary 文章内容回顾 关于农业旅游业带来的各种影响和应用，比如随着农业旅游
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AS IT IS 2014-12-07 In Cameroon, New Tool for Pregnancy Planning 喀麦隆避免意外怀孕新工具 Cameroon has become the seventh African country to begin using a program called Calculator 28. The program calculates -- helps to predict the period
2014年VOA慢速英语(十二)月
有人曾经曰过：女生是一种生命力极其顽强的生物，每个月流血几天不止，却依然上得了厅堂，下得了厨房，斗得过小强，打得过流氓。那么，女孩纸们大姨妈来了，用英语怎么说？ 1. My per
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Women's shopping habits linked to periods In the ten days before their periods begin women are more likely to make extravagant impulse buys, according to researchers. Psychologists believe that shopping sprees could be a way for premenstrual women to
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Classical music fans in Beijing are now embracing a massive work-the complete cycle of Beethoven's 9 symphonies with The Deutsche Kammerphilharmonie Bremen. Paavo Jarvi, an internationally famous Estonian conductor, is the artistic director of the or
2017CRI中国国际广播电台
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
2018CRI中国国际广播电台