The drunk driver is _____ for the traffic jam _____ yesterday.[      ]

A. to blame; occurred            

B. to blame; occurring

C. to be blamed; occurred    

D. to be blamed; occurring

下列哪些券种可以作为质押式回购的质押券？（）

A、中期票据

B、凭证式国债

C、记账式国债

D、资产支持证券