主要为K+负载的Ito电流引起(心室肌)
A．动作电位平台期B．动作电位0期C．动作电位复极1期D．动作电位复极3期E．4期自动去极化
参考答案：C
10BaseT is an Ethernet LAN tem meaning a maximum transfer rate of 10 Mbps that uses baseband signaling and twisted pair cabling. A 10BaseT Ethernet LAN has a ______ topology.
A．star
B．ring
C．bus
D．none of the above
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