and连接两个名词的问题,Fig.2depictsadifferentwaytomulticasttwobitsfromthesourcenode$A{1}$and$A{2}$tothereceiver$B{1}$and$B{2}$onthesamenetwork.其中thesourcenode$A{1}$and$A{2}$中的node使用复数还

Question

and 连接两个名词的问题,
Fig.2 depicts a different way to multicast two bits from the source node $A_{1}$ and $A_{2}$ to the receiver $B_{1}$ and $B_{2}$ on the same network.
其中the source node $A_{1}$ and $A_{2}$中的node 使用复数还是单数呀?
能不能改成the source nodes $A_{1}$ and $A_{2}$?

Answer 1

复数