改变

Great changes have taken place in the ownership of houses in cities in China from 1990 to 2000. While the number of state owned houses decreased, that of private houses increased. In 1990, seventyfive

Changes in Peoples Diet in China The period of 19861990 saw great changes in the diet of the Chinese. Grain, which used to be the main food of most people in China, is now playing a less important rol

Man and His Environment Throughout history man has changed his physical environment in order to improve his way of life. With the tools of technology he has altered many physical features of the earth