Teachers have to constantly update their knowledge in order to maintain their professiona

问题补充：

Teachers have to constantly update their knowledge in order to maintain their professional .

(·江苏，27)

A. consequence

B. independence

C. competence

D. intelligence

答案：

A. consequence

B. independence

(答案→)C. competence

D. intelligence

解析：句意：教师必须不断地更新自己的知识来保持专业技能水平。考查名词辨析。professional competence意为“专业技能”，符合句意。consequence意为“后果，结果”；independence意为“独立”；intelligence意为“智力”，均不符合题意。