A. 封装 B. 焊盘 C. 丝印 D. 过孔
A. 对 B. 错
A. Plated Circuit Board,电镀电路板 B. Personal Circuit Board,个人电路板 C. Printed Circuit Board,印刷电路板 D. Professional Circuit Board,专业电路板
A. 过孔 B. 铜块 C. 导线 D. 封装