How can you study in the living room when other people are watching TV?

I think you need a 　　　 place.

A．cleaner

B．quieter

C．safer

D．smaller

小儿时期最常见的过早搏动是()

A．交界性早搏

B．室性早搏

C．室上性早搏

D．房性早搏

E．以上都不是