以核酸为模板进行增殖的微生物是（）

A.细菌

B.衣原体

C.病毒

D.立克次体

E.真菌

—I’m very tired these days because of studying for physics.

—Why not ______ music. It can make you _______.

A．listen to; relaxing

B．listen to; to relax

C．listening to; relax

D．listen to; relaxed