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

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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

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本试题收录于：网络工程师上午基础知识考试题库软考中级分类