多项选择题
A.方块电路 B.调整元件布局 C.放置印制导线 D.设置工作层 E.设置图幅大小
A.Power Objects B.Create Netlist... C.Drawing Tools D.Placement Tools E.Wiring Tools
A.Design\Option...\Grids\Visible B.Design\Option...\Grids\Snap C.Design\Option...\Electrical Grid D.Design\Option...\Use Custom
A.PCB Library Document B.PCB Document C.Schematic Library Document D.Schematic Document
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