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科学美国人60秒 SSS Windows Vex Bats' Echolocating Abilities

Windows Vex Bats' Echolocating Abilities 干扰蝙蝠回声定位的烦人窗 Just as humans understand the shape of our surroundings by how light reflects off objects, bats use reflections of sounds they produce insteadwhats called echolocation. But

发表于:2018-12-02 / 阅读(86) / 评论(0) 分类 2017年Scientific American(九)月

访谈录 2012-09-27&09-29 食肉病患者谈乐观面对生活

Katie: That was a beautiful sight to see, Aimee Copeland. Aimee: Thank you. It felt pretty good too. Katie: How did it feel? I was so proud of you, by the way. And it's just so moving I think for everybody here to see what a massive accoplishment thi

发表于:2018-12-11 / 阅读(52) / 评论(0) 分类 访谈录2012年

英文书摘精选 Why Was Greenwich Standard Time Created?为什么要确立格林威治标准时间?

Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. 设想一下：您正乘坐一辆中午12点整出发的火车前往另外一个城市，路途耗费4个小时。 Youd expect to arrive at four oclock in

发表于:2018-12-28 / 阅读(84) / 评论(0) 分类 初学者听力文摘精选

奥运28大项第34课 Flatwate皮划艇静水 02

北京奥运28大项 参与，竞争，分享，进步 Flatwater 皮划艇静水 英文原文 All kayaks and canoes shall carry a vertical plate, made of non-transparent material, marked with black numbers on a white background, indicating the lane. The numbers on the plate

发表于:2018-12-30 / 阅读(124) / 评论(0) 分类 奥运28大项比赛

英语听书《海底两万里》第537期 第33章 北纬47.24度, 西经17.28度(12)

The absolute calm of the waves facilitated this operation. 海上风平浪静，十分有利于他进行观察。 The Nautilus lay motionless, neither rolling nor pitching. 鹦鹉螺号一动不动地，不摇晃，也不颠簸。 I was on the platfo

发表于:2018-12-31 / 阅读(62) / 评论(0) 分类 《海底两万里》中英双语有声读物

英语听力文摘 English Digest 296、水塔物理学原理

The Physics of Water Towers 水塔，一般居民区里蓄水作用，有些还是水厂生产工艺的一个重要组成部分，用于保持和调节给水管网中的水量和水压。主要由水柜、基础和连接两者的支筒或支架组成。

发表于:2019-02-24 / 阅读(62) / 评论(0) 分类 英语听力文摘 English Digest
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