一个圆锥形的粮仓，要求能放多少粮食，是求这个粮仓的（ ）。
容积
— Have you found anything about famous scientists ____ you'll use for your talk?
— Not yet. I'll go to the library after school. [ ]
A．what
B．who
C．which
D．that
CPFR的特点是协同、规划、预测和（）。
A.评价
B.补货
C.订单生成
D.销售预测
