按照?qǐng)D畫出所示圖形,求尺寸A的數(shù)值。()
A.43.4563 B.43.4635 C.43.4653 D.43.4536
按照?qǐng)D畫出所示圖形,求剖面線區(qū)域的面積。()
A.3978.7538 B.3978.7583 C.3978.7358 D.3978.7385
A.1734.3833 B.1734.3338 C.1734.3383 D.1734.8333