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‎PoE(Power On Ethernet)以太网供电技术是通过一条网络电缆同时传输数据和设备所需电力的技

‎PoE(Power On Ethernet)以太网供电技术是通过一条网络电缆同时传输数据和设备所需电力的技

术。用户无需单独布设电源线,可有效简化前端线缆部署、节约成本。()

此题为判断题(对,错)。

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更多“‎PoE(Power On Ethernet)以太网供电技术…”相关的问题
第1题
During the whole of a dull, dark and soundless day in the, autumn of the year, when the cl
ouds hung oppressively low in the heavens, had been passing alone, on horseback, through a singularly dreary tract of country, and at length found myself, as the shades of the evening drew on, within view of the melancholy House of Usher. Thus Edgar Allan Poe opened his story of the fall of the House of Usher in 1839. In this beautifully crafted sentence he captured so much that is essential to the horror story: darkness, ominous solitude, foreboding calm, apprehension and uncertainty, and a deep feeling of melancholy that could soon turn to fear.

Many kinds of fiction are self-explanatory: mysteries, Westerns, love stories, spy thrillers, and science fiction define themselves by the terms used to name them. The horror story is less easily defined, perhaps because other types of fiction so often use the trappings of terror to enhance their plots. Charles Dickens used the vehicle of an old-fashioned ghost story to tell A Christmas Carol, but that book is not a honor story. Nor does a Grimm brothers fairy tale such as Hansen and Grate with its child-devouring witch, belong to the genre.

The nature of the horror story is. best indicated by the title of the 1980s television series Tales from the Dark Side. Human beings have always acknowledged that there is evil in the world and a dark side to human nature that cannot be explained except perhaps in religious terms. This evil may be imagined as having an almost unlimited power to inspire anxiety, fear, dread, and terror in addition to doing actual physical and mental harm.

In the tale of horror quite ordinary people are confronted by something unknown and fearful, which can be neither understood nor explained in reasonable terms. It is the emphasis on the unreasonable that lies at the heart of horror stories. This kind of literature arose in the 18th century at the start of a movement called Romanticism. The movement was a reaction against a rational, orderly world in which humanity was basically good and everything could be explained scientifically. The literary type that inspired the horror story is Gothic fiction, tales of evil, often set in sinister medieval surroundings. This original kind of horror fiction has persisted to the present.

In his novel, Edgar Allen Poe _______.

A.integrated the description of beauty into his horror story

B.used a lot of typical descriptions of horror stories

C.was universally considered as the father of horror story

D.combined a touch of sadness in his description of horror

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第2题
What is implied by the mention of Scott, Poe and Hawthorne?A.Irving enjoyed great popular

What is implied by the mention of Scott, Poe and Hawthorne?

A.Irving enjoyed great popular admiration.

B.Scott, Poe and Hawthorne were primarily responsible for Irving' s success.

C.Irving' s work was net only popular, but also of high literary quality.

D.More Americans than Britons admired Irving.

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第3题
PoE技术通过网线向网络设备供电,可用于反向供电。()
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第4题
采用POE组网的时候,需使用千兆路由器来给网络线供电()
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第5题
PoE(PoweroverEthernet)指的是以太网供电可通过现有以太网电缆同时供电和传送数据。()
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第6题
可以使用简易式POE为C3C设备远程供电。()
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第7题
摄像机选型时需要注意哪些参数?()

A.外型

B.分辨率

C.PoE和音频

D.编码方式

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第8题
AP2051DN-E的主要特性包括()

A.支持PoE输出供电

B.内置智能天线

C.内置蓝牙

D.6个GE下行接

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第9题
以下哪些是常见家庭组网方式()

A.电力猫

B.POE交换机+AP面板

C.无线中继器

D.有线AP

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第10题
S5735-L抬高华三S5130S-EI上有哪些竞争点()

A.ACL≥2K

B.标准USB

C.ARP≥4K

D.POE≥740W

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