科学60秒:健康肤色吃出来
Many people love what they consider a suntan’s healthy glow. But the color you get from eating vegetables might be the most attractive glow of all. That’s according to research in the journal ...
科学60秒:犯罪现场调查:血迹测龄
You’ve seen it on TV. Crime scene investigators ____1____ what might be a murder scene. There are blood ____2____ — but no body. Who’s the victim? Now, a new technique developed in the Netherl...
初中英语牛津八年级下02(2)
初中英语牛津八年级下02(2)That's wonderful! Trees cool the air as well as clean it. Three trees can do the job of 15 air conditioners running almost all day. You certainly know a lot about tree...
CNN新闻100篇 News Item 2
CNNIt's back to work for Indian government oil workers after a three-day strike that crippled Indian commerce. Some 45,000 oil workers walked off the job after the government refused their dem...