[=2',3'-dideoxythymidine triphosphate]2',3'-双脱氧胸苷三磷酸

VOA标准英语African Countries Debate Using DDT in Anti-Mal

African Countries Debate Using DDT in Anti-Malaria Efforts The chemical pesticide DDT has been banned by most countries for use in agriculture, but some continue to use it indoors to kill insects that carry malaria. In Zambia, it's an important part

发表于:2019-01-14 / 阅读(315) / 评论(0)

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ECONOMICS REPORT - Nasdaq: An Electronic Marketplace

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发表于:2019-01-16 / 阅读(302) / 评论(0)

健康与经济

2007年VOA标准英语-Israel Strikes Hamas, Palestinian Leaders Postp

By Jim Teeple Jerusalem 17 May 2007 Israeli aircraft carried out air strikes against Hamas militants in the Gaza Strip and Israeli tanks moved to the Gaza border on Thursday. VOA's Jim Teeple reports a planned meeting of Palestinian leaders in Gaza w

发表于:2019-02-06 / 阅读(349) / 评论(0)

2007年VOA标准英语（五月）

2006年VOA标准英语-Environmentalists Urge Elimination of DDT

By Lisa Schlein Geneva 02 May 2006 Environmentalists are calling for the elimination of the toxic chemical, DDT, which is still used in large parts of Africa to combat malaria. The continued use of DD

发表于:2019-02-12 / 阅读(449) / 评论(0)

2006年VOA标准英语（五月）

Debate Rages Over DDT Use in Uganda

As Uganda looks to eliminate malaria, the country is engaged in a debate(辩论会) over the use of chemicals such as DDT in some of the world's most malarial regions. In the district of Apac in northern Uganda, the risk of malaria is higher than any

发表于:2019-02-17 / 阅读(310) / 评论(0)

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adenoidal-pharyngeal-conjunctival(virus)

bear a resentment against