Circumscribed otitis externa
参考答案：
局限性外耳道炎，又名外耳道疖，为外耳道软骨部毛囊感染所致。
农产品网络营销可行吗？
No one in the factory but the brothers _____ that our factory will be closed because of the financial
problem. [ ]
A. knows
B. know
C. have known
D. knew
