出于对人类环境保护日的,积极做好大气污染防治工作,上海从1996年对助力自行车实行控制政策,因而上海助力自行车市场已日落西山,特别是96年下半年以来,限制了助力自行车的上牌,各零售商店助力自行车销售更是寥寥无几。现统计的助力车销售业绩极大部分是在96年上半年创下的。从调查的情况来看,上海市场经销的助力车品牌较 In order to actively carry out air pollution prevention and control work for the People’s Environmental Protection Day, Shanghai implemented a control policy for power-assisted bicycles in 1996. As a result, the Shanghai power-assisted bicycle market has been on the West Hill since sunset. Especially since the second half of 1996, it has restricted the use of bicycles. On the card, there are few bicycle sales at retail stores. The statistics of the sales of bicycles have been largely set in the first half of the year. According to the investigation, the brand of the bicycles that the Shanghai market distributes