A.SolidWorks.com B.3dcontentcentral.com C.3DpartStream.net
A.Ctrl+左鍵 B.滾動(dòng)鼠標(biāo)滾輪 C.移動(dòng)鼠標(biāo)時(shí)按下滾輪不松
A.工具,插件,選擇 B.工具,選項(xiàng),選擇 C.插入,對(duì)象,選擇