第11题: [单项选择]Recently a number of cases have been reported of young children ______ a violent act previously seen on television. A. modifying B. duplicating C. accelerating D. stimulating 参考答案:B 答案解析:[解析] duplicate有“复制”之意,如:duplicate a document(复印文件)。它还可表示“重复”,如:duplicate a tragedy(重演悲剧)。:modify意为“修