A.1/5 B.1/4 C.1/2 D.2/3
A.硅PNP型高頻小功率三極管 B.鍺NPN型低頻小功率三極管 C.硅NPN型低頻小功率三極管 D.鍺PNP型高頻小功率三極管
A.0.45 B.0.9 C.1.17 D.2.34