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斯伯恩自然拼音 02 Frog on a log

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发表于:2018-12-06 / 阅读(105) / 评论(0)

斯伯恩自然拼音（MP3+PDF）

VOA慢速英语20060627b

SCIENCE IN THE NEWS - Protections Increased for Sea Life in Northwestern HawaiiBy Nancy Steinbach, Erin Schiavone and Jerilyn Watson Broadcast: Mon, 26 Jun 2006 16:00:00 UTC (MUSIC) VOICE ONE: This is

发表于:2019-01-02 / 阅读(78) / 评论(0)

2006年慢速英语（六）月

SSS 2008-06-05

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Biologists, traditionally track migrations by tagging animals with devices that allow their movements to be monitored. But Homo sapiens can't be fitted wi

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Scientific American(六)月

VOA标准英语2010年-Website of the Week – Physics Intera

Time again for our Website of the Week, when we showcase interesting and innovative online destinations. This time it's an educational site where principles of physics are illustrated with interactive animated experiments that you can perform on your

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VOA标准英语2010年(二月)

2006年VOA标准英语-Cardiologists Debate Safety of Heart Stents

By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c

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2006年VOA标准英语（十一月)

TED演讲:科技为人道主义带来的变化(2)

Never having been confronted with this type of situation before, 我们从未遇到过此类情况， we wanted to try and understand how we could tap into this incredible resource, 我们想努力了解如何利用这些令人难以置信的信息资源

发表于:2019-03-04 / 阅读(89) / 评论(0)

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学英语单词

aacifemine

active-matrix display

AIVR

amortization of taxes

appeal from a judgement

apricot trees

Arauco

arsenic salt

asymmetric memory cell

backward extrusion

Barbados water