问题
单项选择题
The wholesaler regulates the flow of goods by ______.
A．running level with manufacturers' production
B．holding down stock of commodities
C．keeping stock for per demand
D．adjusting the prices of goods in time
答案
参考答案：C
解析：[分析] 细节题型。 根据是第二段第三句...regulates the flow of goods by holding stock until required。