按照圖畫出所示圖形,求剖面線區(qū)域的面積。()
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