单项选择题
A.8B.16C.24D.32
A.4B.16C.32D.64
A.Mechanical LayerB.Top OverlayC.Bottom SolderD.Drill Drawing
A.单击“Configure Drill Pairs…”按钮B.单击“Impedance Calculation…”按钮C.单击“Place Stackup Legend”按钮D.单击“Properties…”按钮
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