There is no perfect person, some people have made success of themselves in spite of what would appear to be weakness in their professions.
A. /, a
B. a, /
C. a, a
D. /, /
网友回答
A. /, a
B. a, /
(答案→)C. a, a
D. /, /
解析：考查冠词。success作为成功的人或事时，为可数名词；a weakness指他们专业方面的一个缺陷，故选C。