“喷火蚂蚁”(2)

美国论坛报业集团申请破产 (2)

事实上，报纸的读者自八十年代以来就逐渐流失，但如今则每况愈下。 Bill Keller Newspapers have, in fact, been losing readers since the 80s. But things are a lot worse now. Circulation in the 6 months...

肺结核研究的新进展 (2)

Ajit Lalvani ELISpot Daniel Hoft MissouriAjit Lalvani from Imperial College London led an international team in developing the blood test, called ELISpot. A study showed that the ELISpot blood te...

加州大火追踪报道(2)

接下来是对加州大火难免的追踪报道Vicky Harjo lives in a trailer, also in the community of Fallbrook. She also believes her home was lost to the fires. She says her religious faith is helping her c...

“喷火蚂蚁”(1)

“喷火蚂蚁”是一种来自巴西的物种，如今在美国，它已成为一大生物公害Farmers in parts of the United States have struggled for years with an invasion of red imported fire ants from Brazil. These inse...