题目

-Jack got hurt when he played football yesterday.         - __________. A. That’s too bad! Good luck!     C. What a pity      D. Shut up. 答案：A14．如图，△ABC中，AB的垂直平分线DE交AB于E，交BC于D，若BC=10，AC=6，则△ACD的周长为（　　）A．16B．14C．20D．18