When he was sixty years old, he _____ his hometown.

A．returned

B．returned back

C．returned to

D．went back

若患者体质极度虚弱，脓液粘稠，且继发感染，针对此脓肿，下列哪项处理最佳

A．改用大针头抽脓注入抗结核药物

B．切开排脓，置入抗结核药物，缝合伤口，加压包扎

C．加强抗炎治疗及支持治疗

D．穿刺插管冲洗并注入抗生素

E．病灶清除术