题目

 It is __________ you do rather than __________ you say __________ matters. A. what; what; that                       B. that; what; that   C. what; that; what                       D. what; that; that 答案：A如图，在△ABC中，DE∥BC，AD：DB=1：2，BC=2，那么DE=（　　）A．12B．13C．23D．34