2012年“H7N9禽流感”席卷全球，下列说法中正确的是

A．禽流感是由细菌引起的

B．可以用抗生素治疗

C．禽流感不会传染人类

D．禽流感病毒没有细胞结构

Greeting me with a nod, she said in a soft voice,"Hi, you must be Gori. " Then, she _____  the music

and lookedover at Dad.    [ ]

A. turned on                  

B. turned down    

C. played                    

D. enjoyed