【单选题】哪种广域网技术是在X.25公用分组交换网的基础上发展起来的?( )
【单选题】( 8 )哪种广域网技术是在 X.25 公用分组交换网的基础上发展起来的?
【单选题】How did Polly feel as the moon shone on her?
A.
She felt all the happiness in the future.
B.
She felt disappointed for not seeing her husband for a long time.
C.
She felt all the more sentimental but at the same time more confident in the future.
D.
She felt proud of her husband.
【单选题】哪种广域网技术是在x.25公用分组交换网的基础上发展起来的______。
【单选题】哪种广域网技术是在 X.25 公用分组交换网的基础上发展起来的?
【单选题】In letter 5, how did Polly imagine life after the war?
A.
Polly imagined she and Frank would listen to their favorite music together on Sunday nights.
B.
Polly imagined she and Frank would go to theaters.
【判断题】利用Uster均匀度仪,可画出纱线的理想波谱图。
【单选题】下列哪种广域网技术是在X.25公用分组交换网的基础上发展起来的?( )
【单选题】哪种广域网技术是在 X.25 分组交换网的基础上发展起来的?( )