The nine coal miners ________ in the coal mine for 20 hours before we came to their rescue in Yanshan

County, Jiangxi Province.[ ]

A. had trapped  

B. had been trapping

C. would have been trapped  

D. had been trapped

男性，30岁。患右上肺结核已5年，不规则治疗，除第一线药物外，第二线药物中卷曲霉素、丙硫异烟胺、环丙沙星等亦均应用过。胸片示右上肺结核，厚壁空洞。痰菌仍阳性。卞一步治疗应选择（）

A.右上肺叶切除

B.加用新药利福喷汀和阿米卡星

C.肺导管局部给药

D.中医中药治疗

E.免疫治疗