单项选择题
按照图画出所示图形，求剖面线区域的面积。（）
A.799.0126 B.799.0621 C.799.0162 D.799.0612
A.2494.5075 B.2494.0557 C.2494.0575 D.2494.0755
A.1743.9013 B.1743.9010 C.1743.9031 D.1743.9103
