B-ISDN中的ISDN的意思是综合业务数字网(Integrated Service_爱下问搜题

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问题填空题

B-ISDN中的ISDN的意思是综合业务数字网(Integrated Service Digital Network)，而B的意思是【5】。

答案

参考答案：宽带或Broadband或宽带(BroadbanD)

解析：[知识点] 宽带网络技术
[评析] B-ISDN中的B是指Broadband，意思是宽带。

完形填空

In a small village, there lived a potter(陶工) who had a donkey. Every day his donkey would carry soil from the ______ to his house. Since the field was quite far off, the potter would ______ under a tree midway, tying(拴) his donkey nearby.
One day, the potter ____ to take the rope with which he tied the donkey every day. When he reached the ____, he became worried and didn’t know what to do. At that time, a saint(圣人) ____ to be passing by. When the potter told the saint what his ____ was, he said, “Take the ____ to the place where you tie him every day. ____ to tie him using an imaginary rope. He won’t run away.” The potter did what the saint had said.
When he woke up, to his ___ and relief, he found the donkey standing in the ____ place. But to his frustration, when he prepared to leave for ____, the donkey did not move. ____, the potter saw the wise saint again and told him about the donkey’s ____ behavior. The saint said, “Go and pretend to untie the rope.” The potter ____ the saint’s advice.
Now the donkey was ready to leave for home. The potter thanked the wise saint and went home ____ his donkey.

B．disappointment

C．Unfortunately

单项选择题

0.9，1.1，1.3，1.5，1.7，( )

A．1.8

B．1.9

C．2.1

D．2.3