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
42
管理
问题
In 1948, people living in remote areas could see TV programs by ______ in the United States. [br] In tuning system, the Federal Communications Commission had distributed parts of ______ spectrum to 12 television channels which were broken into two groups to avoid interference with existing services at the beginning.
选项
答案
the very high frequency
解析
该段提到,在两个调谐系统中,FCC一开始是将高频(the very high frequency,频谱分配给12个频道,为了避免跟已经存在的服务互相干扰,这些频道被分成两组。
转载请注明原文地址:https://tihaiku.com/zcyy/3632790.html
相关试题推荐
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Thecropcir
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Accordingto
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Accordingto
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Traditional
Somepeoplehavetheage-olddesiretoputthejokeonothers.[br]Accordingto
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
In1948,peoplelivinginremoteareascouldseeTVprogramsby______intheUn
1.老一辈常说,能力比相貌重要2.如今很多人却认为相貌比能力重要3.你的看法AbilityandGoodLooksOldpeople
随机试题
•Readthearticlebelowaboutemploymentsituation,andthequestionsontheopp
Afteryuppiesanddinkies,anewcreaturefromadlandstalkstheblock.The
Arborealnestsoftenfeaturecarton______constructedbytermites.[br]Using
[originaltext]M:I’mnevergoingtoshopatSunFashionShopagain!W:It’sno
Beingbroughtupinaninstitutionorbyneglectfulparents,apregnancy,early
大额可转让定期存单不同于传统定期存单的特点有()。A.记名 B.面额固定
自动喷水灭火系统玻璃球洒水喷头公称动作温度68℃时,工作液色标为()色。
在Excel中,若在A1单元格中输入=SUM(MAX(15,8),MIN(8,3
以下属于古代埃及时期的改革是()A.大流士改革 B.克利斯提尼改革 C.提
A.蛇床子 B.砂仁 C.薏苡仁 D.牵牛子 E.地肤子呈橘瓣状,背面有
最新回复
(
0
)