商品仓储活动消耗的物化劳动和活劳动能保持和延续劳动对象的使用价值。
参考答案：对
--- honey did you put in?
---Two spoons.
A．How many
B．How often
C．How much
D．How long
据北医大对口腔正畸病因统计，口腔不良习惯占各类错牙合畸形病因的
A．1/2
B．1/4
C．1/3
D．1/5
E．1/6
