单选题 Unless______directed by a doctor, this medicine should be taken three times a day.
  • A. appropriately
  • B. respectively
  • C. thus
  • D. otherwise
【正确答案】 D
【答案解析】[解析] otherwise“其他方面的,另外的”。译文:除非另有医嘱,否则这种药应该一天服三次。A项appropriately“适当地”;B项respectively“分别地”;C项thus“因而”。