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Without the talking binoculars, a scout during radio silent scouting missions __
Without the talking binoculars, a scout during radio silent scouting missions __
游客
2023-09-17
60
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问题
Without the talking binoculars, a scout during radio silent scouting missions ______. [br] What can be inferred about the relationship between laser communications and radios?
选项
A、Lasers have replaced all the radio devices.
B、Lasers have more advantages over radios.
C、Laser communications are based on radio devices.
D、Lasers are more widely applied in war than radios.
答案
B
解析
由题干关键词laser communication定位到文章第五段。该段提到激光通信的特点包括信息传送的多样性,不易探测性及高容量性,因此比无线电通信更利于军事活动,B是对这些优势的总结。第六段说明激光将在未来取代其他的通信方式,故排除A;C为无关选项,可直接排除;从文章第一句可以推知,现在的通信方式还是以无线电为主,故排除D,其中on the horizon指“即将发生”。
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