Packet-switching wireless networks are preferable(66)when transmissions are(67)because of the way charges are(68)per packet. Cir

admin2009-02-15  40

问题 Packet-switching wireless networks are preferable(66)when transmissions are(67)because of the way charges are(68)per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are(69)for the(70)of time they use the network.

选项 A、to
B、for
C、than
D、only

答案D

解析
转载请注明原文地址:https://jikaoti.com/ti/x3B7FFFM
0

相关试题推荐
最新回复(0)