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What is 5G technology?When it arrives,5G technology will utilize a higher-frequency band of the wireless spectrumcalled millimeter wave that allows data to be transferred much more rapidlythan the lower-frequency band dedicated to 4G. The downside is that millimeterwave signals don't travel as far: The new 5G networks will require many more(albeit smaller) antennas spaced closer together than previous wirelessgenerations.A.
毫米波频段的 5G 比低频段的 5G 有更大的发展潜力
B.
由于频率升高，视距传播距离限制， 5G 一般需要比 4G 系统更为密集的基站体系
C.
5G 但基站功耗低，可以实现远距离传输
D.
How much better than 4G will it be? It depends who you ask. Verizon has said that its 5G network will likely deliver speeds 200 times faster than many of its 4G LTE users get now. According to Gizmodo, 5G networks will have the capacity for transfer speeds 10 times those of 4G networks. Other forecasts vary considerably, with some experts saying that 5G connections will initially be about three times faster than 4G, and others making claims on par with Verizon's. One big reason for those discrepancies is that 5G hardware standards haven't yet been agreed upon by the telecommunications industry. The carriers are still developing several versions of the technology. So naturally, there's no clear "speed multiple." But all companies involved are pursuing 5G that will be significantly faster than today's mobile wireless connections. （5G 和 4G 对比，速率优势比例不确定，优势肯定有）
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【单选题】“匍匐往,将食之”的将是个动词,意思是拿着,下列句子中的“将”哪一个和它的意思相同?
A.
将炙啖朱亥，持觞劝侯嬴。（李白《侠客行》）
B.
李白乘舟将欲行，忽闻岸上踏歌声。（李白《赠汪伦》）
C.
暂伴月将影，行乐须及春。（李白《月下独酌》）
D.
凤姐说着说着，便呜呜咽咽，哭将起来。（《红楼梦》）
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【简答题】渐开线直齿圆柱外啮合齿轮的啮合线既是基圆的 线,又是齿廓接触点的 线。
【单选题】下列几组偶像人物中都属于道教的一组是( )
A.
关羽、韦驮、济公、司命星君
B.
铁拐李、真武大帝、太上老君、福神
C.
吕洞宾、济公、妈祖、关羽
D.
四大天王、妈祖、关羽、太上老君