为什么要使用食品添加剂？使用食品添加剂应遵循哪些原则？

A. What exactly is science.
B. How do you find an explanation.
C. What topics do you need.
D. How do you answer your child"s questions.
E. Where does your child study science.
F. How do you set up the experiment on salt and water，

A. What exactly is science.
B. How do you find an explanation.
C. What topics do you need.
D. How do you answer your child"s questions.
E. Where does your child study science.
F. How do you set up the experiment on salt and water，

A. Right
B. Wrong
C. Not mentioned

A. 配制酒
B. 腌制小菜
C. 肉干
D. 冰淇淋
E. 乳酸菌饮料