— I think I'm ____ to go back to work.

— I'm afraid not. You must stay in bed for two more days.[ ]

A. good enough

B. old enough

C. well enough

D. enough old

明末思想家顾炎武在《吴中纪事》中指出：“富民有田而贫者多佃之，秋收之后，所得各居其半。”这反映了当时农村经济中的主要经营方式是

A．千耦其耘式经营

B．田庄式经营

C．自耕农式经营

D．租佃式经营