The American student gave me English lessons________Chinese lessons.[ ]

A. in exchange for  

B. to exchange for

C. in exchange with  

D. to exchange with

下列不属于康复工程产品的是（）

A.康复护理与防护设备

B.功能检测和康复评定系统

C.康复训练器械

D.辅助产品

E.影像检查设备