The author had qualified as a doctor but later gave up the of medicine for full-time writing.
A. prescription
B. procedure
C. treatment
D. practice
网友回答
A. prescription
B. procedure
C. treatment
(答案→)D. practice
解析： 本题译文: 这位作者当过医生，但后来放弃开业，专搞写作.practice(医生或律师的)业务，生意: 1 The lawer has a very good practice. 2 We call a doctor's work and the number of patients he look after his practice.(我们把医生的工作和医治病人的数目称为开业状况.)
prescription 药方；procedure 程序，手续；treatment 治疗，待遇.