第一方位角法

VOA常速英语2008年-Antibiotic-Resistant Bacteria Poses Threat to P

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(69) / 评论(0)

VOA常速英语2008年（二月）

VOA慢速英语2015 研究发现使用抗生素有助农场提高动物密度

Study: Use of Antibiotics in Farm Animals Expected to Grow 研究发现使用抗生素有助农场提高动物密度 A new study has found the amount of antibiotics given to farm animals is expected to increase by two-thirds over the next 15 years. R

发表于:2019-01-12 / 阅读(46) / 评论(0)

2015年VOA慢速英语(四)月

VOA标准英语2012--Drug-Resistant Malaria Threatens Effort to Control Disease

Drug-Resistant Malaria Threatens Effort to Control Disease The biggest fear is the resistance will spread across Southeast Asia and then spill over into Africa, where the vast majority of the 700,000 deaths a year [from malaria] occur. Historically,

发表于:2019-01-13 / 阅读(40) / 评论(0)

VOA标准英语2012年(四月)

VOA标准英语2012--MSF: Alarming Scope of Drug-Resistant TB

MSF: Alarming Scope of Drug-Resistant TB A medical aid group says the spread of multi-drug-resistant tuberculosis is much greater than previously thought. Doctors Without Borders calls the situation alarming. MDR-TB is a form of tuberculosis that doe

发表于:2019-01-13 / 阅读(47) / 评论(0)

VOA标准英语2012年(三月)

Developing Wheat Resistant to Leaf Rust

59 美国科学家正试图培育抗叶锈病小麦 DATE=6-19-01 TITLE=AGRICULTURE REPORT - Developing Wheat Resistant to Leaf Rust BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(67) / 评论(0)

科技之光

VOA标准英语2010年-Effort to Stem Drug-Resistant Malaria

Malaria patients being treated at the hospital in Pailin, Cambodia. This spot on the Thai-Cambodian border is home to a form of malaria that keeps rendering one powerful drug after another useless (file photo) Health experts were alarmed to find a st

发表于:2019-02-06 / 阅读(51) / 评论(0)

VOA标准英语2010年(七)月

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