这是我们上海食药监人所经历的难度系数最高的一次食品安全保障行动——连续半年每一个餐次就餐人数之多都前所未有;半年中频繁启动一级预案,保障各国元首及贵宾的就餐安全也前所未有;这是我们所经历的时间跨度最长的一次食品安全保障行动——整 This is the highest degree of difficulty in food safety supervision that our Shanghai Food and Drug Supervisor experienced. As many as one in every consecutive meal in the past six months, the first batch of meals has been launched frequently to protect the heads of state and VIPs Security is unprecedented; it is the longest food security act we have ever experienced