仓库分区分类就是对储存商品在()前提下,把库房、货棚、货场划分为若干保管区域。
A.种类一致
B.性能一致
C.养护措施一致
D.消防方法一致
参考答案:B, C, D
—Hi, Mary. __________?
—Not so well. I can’t keep up with the other students.
A.How long have you studied chemistry
B.Who is teaching you chemistry
C.How is your chemistry study going
D.Where are you learning chemistry
A.,正电荷
B.,正电荷
C.,负电荷
D.,负电荷