A.gbenor.shxB.txt.shxC.gbeitc.shxD.gbcbig.shx
A.剖面線所在的圖層不是當(dāng)前圖層B.FILL命令處于“關(guān)”狀態(tài)C.剖面線所在的圖層處于“關(guān)閉”或“凍結(jié)”D.封閉區(qū)域沒(méi)有封閉
A.定數(shù)等分點(diǎn)B.定距等分點(diǎn)C.單點(diǎn)D.多點(diǎn)