【题目】He proved himself a true gentleman and the beauty of his ________ was seen at its best when he worked with others.
A.advantage
B.appearance
C.qualification
D.character

【答案】D
【解析】考查名词词义辨析。根据句意：他证明了自己是一个真正的绅士，他的人格魅力在与他人合作时表现得最佳。advantage 优点，长处；appearance 外表，外貌；qualification 资格；character 品质，性格。