Living in the dormitory means _____to take care of yourself, understand each others ' differences and share _____ interests.

A．to learn, common.

B．learning, ordinary

C．to learn, ordinary

D．learning, common

幅度鉴别器可用来提高缺陷信号的（）。

A.幅度

B.周期

C.信噪比

D.带负载能力