China has got a good _____   for fighting against the flu with its careful and smooth organization.    [ ]

A. reputation    

B. influence    

C. impression    

D. knowledge

鲫鱼的食性和压碎食物的结构是（）

A、肉食性、口腔内的牙齿

B、杂食性、咽部的咽喉齿

C、肉食性、咽部的咽喉齿

D、杂食性、口腔内的牙齿