【简答题】Treatment for HIV has become more widespread, especially in poorer countries. It's also become cheaper, as medicine companies have lowered their prices for life-saving anti-retroviral drugs(抗逆转录病毒药物)....
【简答题】Throughout this century English has grown more and more important. It has become a second language for many millions of people. ________________________________________________________________________...
【简答题】Dieting to lose weight has become very popular in recent years. People have become more health conscious and try to take better care of their bodies by eating more nutritiously (有营养地) and exercising m...