【简答题】Tu up for prestigious award Chinese scientist Tu Youyou, winner of the 2015 ______ for the discovery of artemisinin, a group of drugs used to combat malaria, has been ______ for China's Medal of the R...
【单选题】Reading in DepthPassage 1Why do we cry? Crying makes sense if smoke gets in your eyes or if you’re cutting onions. The tears protect your vision. But what good is emotional crying?Crying often seems t...
【简答题】Recently, a scientist did some experiments.He left a group of 4-year-olds in a room with a bell and a candy.If they rang the bell, he would come back and they could eat the candy.If, however, they did...