（）means a technique using digital codes which enables a radio station to establish contact with, and transfer information to another station or group of stations and complying with the relevant recommendations of the CCIR.

A.DSC

B.MSI

C.EGC

D.NBDP

设甲厂举证证明乙厂供应的零配件存在严重的质量隐患，致甲厂与之配套的其他洗衣机零配件损坏，总计经济损失5000多元，则甲厂请求乙厂承担什么责任