Teachers have to constantly update their konwledge in order to maintain their professional _.

问题描述:

Teachers have to constantly update their konwledge in order to maintain their professional _.
A.consequence B.independence C.competence D.intelligence

Teachers have to constantly update their knowledge in order to maintain their【competence】.
翻译:教师们必须不断地更新他们的知识以保持他们能够胜任工作的能力.

为了保持能够胜任工作的能力,教师们必须不断地更新他们的知识.
翻译:
update 更新;使合乎潮流;使现代化
maintain 保持;保存;维持;持续;使继续
competence资格;能力;胜任,称职