一次，在公共汽车上，我听到一中车妇女对一位大约六七十岁样子的老人说：“你们那个时候，虽然吃得祖、吃得少，可是没有毒哇！”她所说的“毒”，无外乎农药、塑胶餐具、空气、水源等我们常提到的，正努力克服却逃不脱其影响的各类污染。在科学技术已延伸到生活的各个领域产 Once, on the bus, I heard a ZTS woman saying to an old man of about six or seventy years old: “At that time, although you had eaten ancestors and eats less, there was no poison wow!” She said Of the “poison”, nothing less than pesticides, plastic tableware, air, water, etc. We often mentioned, are trying to overcome but can not escape its various types of pollution. Science and technology have been extended to produce in all areas of life