【单选题】
一般（ ）效应和多径效应会引起快衰落。
A. 多普勒效应
B. 远近效应
C. 呼吸效应
D. 阴影效应
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答案
A
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B. 物理层+数据链路层+网络层
C. 数据链路层+网络层+应用层
D. 数据链路层+网络层+传输层
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移动互联网业务感知分析系统针对运营优化的分析功能，支持对指定感知性能KQI/KPI告警级别告警规则的自定义，质差告警的对象是什么粒度级别？( )
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NFV旨在采用（ ）的方法，将原本运行在专用中间设备(middlebox)的网络功能（如网关，防火墙）用软件的方式实现。
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
The writer was particularly touched by Clint because___
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【单选题】
The writer's marriage to Clint is important to her mainly because___
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【单选题】
What was Goodall's childhood dream ?___
A. She dreamed of going to college .
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【单选题】
What did Goodall's mother think of her dream ?___
A. As a girl she should not go to the African jungle .
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【单选题】
Goodall's most important discovery was that___
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【单选题】
Goodall's success is chiefly due to her___
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【单选题】
What is Goodall doing now ?___
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【单选题】
中国特色社会主义进入新时代,意味着科学社会主义在21世纪的中国焕发出强大生机活力,在世界上高高举起了___伟大旗帜。
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C. 和谐社会
D. 中国特色社会主义
