按照?qǐng)D畫出所示圖形,求尺寸A的數(shù)值。()
A.4.0644 B.4.0446 C.4.0464 D.4.0564
按照?qǐng)D畫出所示圖形,求剖面線區(qū)域的面積。()
A.275.4914 B.275.4194 C.275.4491 D.275.4419
A.1067.3530 B.1067.3435 C.1067.3345 D.1067.3350