数一数，图中有多少条线段？,b9[3X(G'd2u
,b9[3X(G'd2u
算式：提示5m2f*c1c4G-c1k9e,b9[3X(G'd2u
答：图中有'q)A'@)z2W7T7T1H条线段。,b9[3X(G'd2u