— I think our English teacher is working hard. He teaches us           .

— Yes, but he hasn't come today. He doesn't feel           . [ ]

A. good; well

B. good; good

C. well; good

D. well; well

角膜边缘基质胆固醇、磷酸脂及脂肪沉着（）

A．老年 

B．角膜带状变性 

C．格子状角膜营养不良 

D．颗粒状角膜营养不良 

E．Fuch角膜内皮营养不良