随着配送货物数量的增加,配送中心除了自己直接配送外,还采取了（）的配送策略.

With the increase of the quantity of delivered goods, the distribution center adopts the （） distribution strategy in addition to its own direct distribution.

A.协作配送 Collaborative distribution

B.联合配送 joint distribution

C.转承包 subcontracting

D.独立配送independent distribution

正确答案：转承包 subcontracting