问题
选择题
Teachers have to constantly update their knowledge in order to maintain their professional ________.
(2011·江苏，27)
A．consequence
B．independence
C．competence
D．intelligence
答案
答案：C
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。