按照?qǐng)D畫出所示圖形,求剖面線區(qū)域的面積。()
A.2210.2884 B.2210.2487 C.2210.2578 D.2210.2874
A.715.3734 B.715.3374 C.715.3743 D.715.3437
A.1035.5472 B.1035.5427 C.1035.5274 D.1035.5247