题目

如图，在△ABC中，BC边上的垂直平分线DE交边BC于点D，交边AB于点E，若△EDC的周长为24，△ABC与四边形AEDC的周长之差为12，则线段DE的长为________． 答案：6The novel A Tale of Two Cities by Charles Dickens was ______ in Paris and London. [     ]A. made        B. put         C. set            D. played