题目内容
A qualified doctor has to constantly update his knowledge in order to maintain his professional _____.
| A.conscience | B.competence | C.conservation | D.convenience |
B
试题分析:A. conscience意识,B. competence能力,C. conservation保护,D. convenience便利,句意:一个合格的医生不得不不断的更新他的知识为了保持他的专业技能。选B。
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