— Mom, can I help you?

— _________________[ ]

A. Great!

B. Sure. Here you are.

C. Yes. Pass me a fork, please.

肺脓肿( )

A．X片见大片状阴影，呈肺叶和肺段分布
B．X线片呈大片状阴影，内有空洞伴液平
C．X线片右上空洞，周围有斑片状阴影
D．X线片右下偏心空洞，内壁凸凹不平
E．X线片左下单个薄壁空腔阴影