中药材和中药饮片（）
A.分开存放
B.分库存放
C.集中存放
D.储存的相对湿度为45%～65%
参考答案：B
短时记忆信息容量是无限的。
As we are ______ the market for Table Cloth, we should be glad if you would send us your best quotation.
A．in
B．on
C．entering
D．at
