问题补充：
单选题Theauthorhadqualifiedasadoctorbutlatergaveupthe_____ofmedicineforfull-timewriting.A.prescriptionB.procedureC.treatmentD.practice
答案：
D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 doctors 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.
