[网络] 生物气候学

常春藤生活英语【6】Arthur and the Minimoys　

Arthur and the Minimoys 阿瑟的奇幻王国：毫发人的冒险 Every child wants a good bedtime story before they fall asleep and go into their dream world. Arthur was no different and his grandmother read stories to him every night. She amazed h

发表于:2018-11-30 / 阅读(158) / 评论(0)

常春藤生活英语

名人轶事:Nina Simone Was a Singer and Activist in the Civ

Nina Simone Was a Singer and Activist in the Civil Rights Movement of the 1960s VOICE ONE: I'm Faith Lapidus. VOICE TWO: Singer Nina Simone And I'm Steve Ember with the VOA Special English program People in America. Today we tell about singer Nina Si

发表于:2019-01-02 / 阅读(61) / 评论(0)

名人轶事

数学英语 22 What Are Sequences in Math?

by Jason Marshall In the last few articles, weve talked about fractions and percentages, and soon enough well see that these ideas naturally lead us into the world of decimal numbers. But before we head down that path, lets take a quick detour to tal

发表于:2019-01-02 / 阅读(102) / 评论(0)

数学英语

数学英语 18 What Are Geometric Sequences?

by Jason Marshall In the last article, we began talking about mathematical sequencesin particular, a type of sequence known as an arithmetic sequence. Today, were going to turn our attention to another type of sequence called a geometric sequence. In

发表于:2019-01-02 / 阅读(106) / 评论(0)

数学英语

Biosolids

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

发表于:2019-01-02 / 阅读(75) / 评论(0)

VOA2003（下）-农业与经济

SSS 2008-03-11

This is Scientific Americans 60-Second Science. Im Karen Hopkin, this will just take a minute. Anyone whos ever cut up an onion knows that some smells can actually be painful. Now, researchers from Baltimore and Denver are closer to understanding why

发表于:2019-01-08 / 阅读(81) / 评论(0)

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agri-

anger-management

antihemorrhoidal

antiribonucleoprotein

automatic message accounting