什么是真北方向?
参考答案:
地面P点真子午面与地球表面交线称为真子午线,真子午线在P点的切线北方向称真北方向
在星型拓扑结构中,结点通过______通信线路与中心结点连接。
He was so excited and insisted that what he had done completely______ their demand(要求).
A.met
B.meet
C.should meet
D.has met