2. Small cross-
bounder vehicle is both economy and sport. Which one is best welcome by the market among the three small cross-border cars.
小型跨界车,既经济省油更有运动特质。这里的三款小型跨界车哪款更值得市场宠爱?
3. This paper discusses the method of using rulers and compasses to average the polygonal areas by treating the dot on the
bounder of a polygonal area as a beeline.
讨论尺规方法均分多边形面积,给出过多边形边界上一点作一直线将多边形面积二等分的作法。