It took three years for the rural economic reform to achieve good results,and it should take at least three to five years for the urban economic reform to produce visible results,because conditions there are more complicated than in the countryside.

• 农村经济体制改革是用三年时间见效的，城市经济体制改革比农村复杂，至少用三至五年的时间才能取得明显的效果。