《齐民要术》自序：“盖神农为耒耜，以利天下。尧命四子，敬授民时。舜命后稷，食为政首。

近年来，宁波的食品安全问题层出不穷，先是宁波奶大肠菌群超标，合格率低;再是新美心蛋糕致百人中毒。而这两种食品是许多中学生的每日必需品。中学生正处于生长发育的关键时期，食品安全极为重要。请根据下图提示谈谈中学生如何健康饮食并给出理由。

注意：80词左右。开头、结尾已为你写好，不计人词数。文中应包含所有要点，并适当发挥。

Nowadays, there is so much illegal (非法的，违规的 )food. Many people are sick because of eating it. More and more people pay attention to the food safety. As young students, we also face the problem. We need to eat well to make sure we can grow up healthily

If we try our best to do these, I think all of us will look after our health well.

共青团的团旗、团徽是1959年（）月（）日由共青团中央委员会公布的。

He met Rachel at her college graduation ceremony in 2011, ________ he was later to marry.

A．which

B．when

C．where

D．whom

教师自编测验的测题形式主要有（）和（）两种。

病害与损伤的区别