鲜红的西红柿，绿得发亮的黄瓜，人看一眼就起食欲。在拿着塞进嘴中的时候，几乎没有人去想，这美味有没有中毒的危险。然而通过调查得来的科学数据表明，人们日常所吃的蔬菜水果的确存在中毒的危险。曾有科研单位的抽样调查显示，北京市场上的蔬菜和水果中农药残留超标率到达2 Bright red tomatoes, shiny green cucumber, people look at the appetite. Almost nobody thought about it when it was stuffed into his mouth, and there was no danger of poisoning. However, the scientific data obtained through the investigation shows that the vegetables and fruits people eat daily are indeed at risk of poisoning. A sample survey conducted by scientific research institutes shows that the pesticide residues exceeding the standard in vegetables and fruits on the market in Beijing reach 2