—He went to see the man who was in hospital yesterday. 

— ________. But we didn’t meet him there.

A．So did we

B．So we did

C．Neither did we

D．Neither we did

在一个配送系统中设有多个配送中心，而将用户按一定的原则分区，归属某一个配送中心，这种配送网络叫做（）。

A.集中型配送网络

B.分散型配送网络

C.多层次配送网络

D.消费品配送网络