— _____ Mr. White was appointed director of our department.

— Then we have two Whites now including _____ Mr. White, the doorkeeper. [ ]

A. The; a

B. A; the

C. A; 不填

D. 不填; a

某矿场的采石工，年龄25岁，工龄2年，因咳嗽、气短、胸闷、胸痛而到医院诊治。患者自述，采矿场工作条件差，无防尘措施

诊断时应注意哪种尘肺（）。

A.煤工尘肺

B.晚发性矽肺

C.速发性矽肺

D.石棉肺石墨尘肺

E.煤矽肺