在整个呼吸周期中正常吸气占1/3。()
参考答案：对
Mary certainly talks a lot and shes never interested in what
has to say.
A．somebody else
B．anyone else
C．nobody else
D．everybody else
以下哪个地址是Ethernet的物理地址________。
A．10.254.1.220
B．00-60-08-00-A6-38
C．10-65-08
D．:::10.0.0.1
