—I don't suppose the police know who did it.

—Well, surprisingly they do. A man has been arrested and ______ now.

A．has been questioned

B．is being questioned

C．is questioning

D．has questioned

仓库进行生产和辅助生产作业以及保证仓库及作业安全所必需的各种机械设备和设施是( )。

A．仓储技术设备

B．库存技术设备

C．仓管技术设备

D．储运技术设备