单项选择题
按照图画出所示图形,求剖面线区域的面积。()
A.595.3870 B.595.3807 C.595.3780 D.595.3708
A.11685.0481 B.11685.0841 C.11685.0814 D.11685.0418
A.43.4563 B.43.4635 C.43.4653 D.43.4536