（）测距技术依靠在节点上安装天线阵列来获得角度信息
A.SoA
B.ToA
C.AoA
参考答案：C
--Let’s go to watch the 3D film “Avanta”, shall we?
--Sorry, I can’t ______ to watch it because I have donated all my pocket money.
A．buy
B．offer
C．wait
D．afford
发酵工程
