单项选择题
按照图画出所示图形,求剖面线区域的面积()
A.2726.2272 B.2726.2227 C.2726.2722 D.2726.7222
A.1475.8097 B.1475.8709 C.1475.8079 D.1475.8790
A.5090.4373 B.5090.4733 C.5090.4337 D.5090.3734