首页
登录
职称英语
In 1948, people living in remote areas could see TV programs by ______ in the Un
In 1948, people living in remote areas could see TV programs by ______ in the Un
游客
2024-06-13
10
管理
问题
In 1948, people living in remote areas could see TV programs by ______ in the United States. [br] What do we know about the "ghosting" from the passage?
选项
A、It is a double image of TV.
B、It refers to the speed of light.
C、It was eventually solved by engineers.
D、It refers to the speed of the radio signals.
答案
A
解析
本题涉及到“ghosting”的含义。该段提到无线电广播信号的速度与电视信号的速度,当这两个信号到达电视调谐器的时间间隔不到一秒时,电视上就会出现重影,这就叫做“ghosting”,故答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3632787.html
相关试题推荐
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Thecropcir
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Accordingto
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Dihydrogenm
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Dihydrogenm
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Accordingto
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
随机试题
Thecrowdwent________assoonasthesingersteppedontothestage.A、wildB、emot
【B1】[br]【B6】[originaltext]Therearesomeproblemsforinternationalstude
Theadvocates—mainlyfamilytherapydoctors—areapplyinganewapproachtoevery
诊断吸入性损伤最直接和最可靠的方法是A.MRI检查 B.CT检查 C.
以下不属于基金信息披露禁止行为的是()。A.对证券投资业绩进行预测 B.
白细胞形态呈现肿胀,并形成块状凝块,容易出现在( )。A.高渗尿 B.低渗尿
Thechangeinthatvillagewasmiraculou
A.水蒸气遇冷形成小冰晶是凝固现象 B.水蒸气遇冷形成小冰晶需要吸热 C.太
关于工程项目投标报价技巧的说法,赶工补偿正确的是( )。A.愿意承揽的项目,报
溶血性贫血的描述中,哪一项符合() A.贫血和出血程度一致 B.贫血和出血程
最新回复
(
0
)