阳极压降主要受()和()影响较大。
参考答案:炭块电阻;组装质量
在下列药物中,治疗厌氧菌感染应选用()
A.庆大霉素
B.头孢氨苄
C.甲硝唑
D.美西林
E.氨曲南
(74) is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.
A. Repeater B. RouterC. Bridge D. Switch