創(chuàng)建新零件時(shí)可自動(dòng)生成軸系,且軸系定義于模型的原點(diǎn),并使用默認(rèn)參考平面來(lái)確定方向。若要更改此項(xiàng),則應(yīng)該選中對(duì)話框中的哪項(xiàng)?()
A.create a geometrical setB.create an axis systemC.create an ordered geometrical setD.create a 3d work support
A.B.C.D.