题目

听材料，回答问题。 （1） How did the man feel about his performance today? A . Greatly encouraged. B . A bit dissatisfied. C . Terribly disappointed. （2） What did the man say helped him overcome the problem? A . Patience. B . Luck. C . Determination. （3） What is the woman doing? A . Conducting an interview. B . Holding a press conference. C . Hosting a ceremony.如图△ABC中，∠ACB=90度，AC=2，BC=3．D是BC边上一点，直线DE⊥BC于D，交AB于点E，CF∥AB交直线DE于F．设CD=x．（1）当x取何值时，四边形EACF是菱形？请说明理由；（2）当x取何值时，四边形EACD的面积等于2？