One can be easily _____ smoking in a smoking family.

A．addicted to

B．get in the habit of

C．found

D．interesting to

男性，25岁。午后低热2个月伴乏力、盗汗和消瘦，咳嗽，咳少量白痰。体检：肩胛间区可闻及少量湿性啰音。遂来门诊，首选的检查措施是（）

A.胸部X线检查

B.痰找结核菌

C.痰培养+药敏

D.PPD试验

E.支气管镜检查