【正文】
2)The population in this city has now increased (decreased)to 800,000. 3)The output of July in this factory increased by 15% pared with that of January. 例如: With the improvement of the living standard,the proportion of people’s ine spent on food has dec reased while that spent on education has increased. 再如: From the graph listed above,itcan be seen that student use of puters has increased from an average of less than two hour