What do you have on Tuesdays?  [ ]

A. We have art, Chinese and P. E.

B. We have art, math and English.

C. I do my homework.

下列关于胸肺部X线检查临床应用的叙述，错误的是

A．诊断呼吸系统疾病
B．检测呼吸功能
C．防癌
D．防痨
E．防职业病