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问题 单项选择题

以下不属于网络协议故障的表现的是（）

A.计算机无法登录到服务器

B.计算机在网上邻居中看不到自己，也无法在网络中访问其他计算机

C.网线、跳线或信息插座故障

D.计算机无法通过局域网接入Internet

答案

参考答案：C

填空题

[听力原文] 11-15

A mother and her seven-year-old daughter were resting in their room in a big hotel in Thailand when (11)(15) suddenly a fire broke out. Very soon thick black smoke started to come into their room and there was hardly any air. (15)Their lives were in danger. The mother opened the door only to find that the hall way was also (12)full of smoke (15)She ran to the telephone to call for help, but the line was dead, Then she put (13)wet towel over her daughter’s face and her own so that they could breathe. Later firefighters lowered a rope from the hotel roof to their window level and (15) pulled them up to the roof. (14) Eighty-four people were killed in the fire and (15)fortunately they were saved.

In order to breathe, what did the mother put over their faces
（）
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填空题

按《广东电网公司电气操作票管理规定》，填写操作票时必须符合（）和（）。
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