A.5mm B.4mm C.6mm
A.3個(gè)焊點(diǎn) B.1個(gè)焊點(diǎn) C.4個(gè)焊點(diǎn)
A.前者為10mm,后者為12mm B.前者為20mm,后者為25mm C.前者為14mm,后者為17mm