春天到了,这是老年人外出旅游的大好季节。旅游有时免不了要乘坐飞机。坐过飞机的人大都有过这样的感受,那就是飞机上的餐食比平时的食物难吃。问民航的工作人员,他们也十分无奈,说食物的原材料都是精心挑选的,力争让乘客吃得健康、舒心。可为什么就是难吃呢?国外研究者最近揭示了飞机餐难吃的原因:并不是菜肴不可口,而是因 Spring is coming, this is a good season for the elderly to travel. Travel sometimes inevitable to take the plane. Most people who have been in the plane have had such feelings, that is, the food on the plane than usual food unpalatable. Asked civil aviation staff, they are also very helpless, said the raw materials of food are carefully selected, and strive to allow passengers to eat healthy and comfortable. Why is that it is unpalatable? Foreign researchers recently revealed the reasons for the unpleasantness of the plane meal: not unpleasant dishes, but because