生物砾屑灰岩

蒋健棠听说学英语 Chapter16:The wildlife biologist

发表于:2018-12-26 / 阅读(87) / 评论(0)

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Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

发表于:2019-01-02 / 阅读(104) / 评论(0)

科技之光

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

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VOA2003（下）-农业与经济

2005年NPR美国国家公共电台八月-Chinese Firm Out of Running for Unocal

The Chinese offshore oil corporation known as CNOOC has abandoned its bid for UNOCAL. This would have been the largest-ever purchase of an American company by a Chinese firm. CNOOC had put forth a bid that was higher than the competing bid from US o

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2005年NPR美国国家公共电台

VOA标准英语2009年-US Looking for Reciprocal Iranian Gesture After

The State Department said Friday U.S. officials are looking for a reciprocal gesture from Iran after President Barack Obama's conciliatory holiday message to the Iranian people and government Thursday. Mr. Obama said in a broadcast for the Iranian n

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VOA标准英语2009年(三月)

VOA标准英语2011--Geography Meets Social Media on ‘Geoso

GeographyMeetsSocialMediaonGeosocialSites Theres a well-worn phrase in real estate: location, location, location, meaning that where a property is located, alone, means more than anything else when it comes to assessing its value. But location is get

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VOA标准英语2011年(九月)

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学英语单词

Achocalla

actinocyclus ellipticus lanceolata

bile duct hyperplasia

blue goose

BPO-HSA

Busse's Saccharomyces