-Would you get me a bar of chocolate from the kitchen,dear?

-          one?                                        

A．Other

B．Every

C．Another

D．More

目前，宽带城域网保证服务质量要求的技术主要有资源预留、区分服务和( )。

A．ATM
B．Ad hoc
C．帧中继
D．多协议标记交换