简述饮料包装方式。
参考答案:
纸包装、塑料瓶、玻璃、金属罐。
--- I’m a student from Grade One. I want to become the ______ of the Music Club.
--- Welcome! But you have to sing well.
A.problem
B.sign
C.friend
D.member
营养监测的主要功能有()
A.记录现象
B.监测变化
C.发现趋势
D.总结经验
E.预测变化