题目

 It even leaves the wise scientists in wonder ____ they should call the newly-born creature, which looks half-human and half-animal. A. what      B. how       C. why      D. that 答案：A（2002•金华）如图，D是△ABC的AB边上一点，过D作DE∥BC，交AC于E，已知AD：AB=1：2，那么S△ADE：S△ABC的值为（ ）A．4：9B．2：3C．1：4D．1：2