第11题: [单项选择]Sentence Completion When those whom he had injured accused him of being a ______ , he retorted curtly that he had never been a quack. A. libertine B. sycophant C. charlatan D. plagiarist E. (E) reprobate 参考答案:C 答案解析:Charlatan is another term for a quack or pretender to medical knowledge.