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
59
管理
问题
In 1948, people living in remote areas could see TV programs by ______ in the United States. [br] As the bandwidth increased to 550 MHz, the number of TV channels increased by ______compared with the early cable systems.
选项
A、24
B、33
C、58
D、91
答案
C
解析
本题涉及到电视节目数量的比较。该段提到早期的电缆系统只能收到33个频道,随着技术的进步,当频宽增加到550 MHz时,电视频道增加到91个,也就是说,与早期的电缆系统相比,电视频道增加了58个,故答案为 [C]。
转载请注明原文地址:http://tihaiku.com/zcyy/3632788.html
相关试题推荐
InBritain,therewereafewveryrichpeoplewhoreceivedmoneyfromlando
Bytheearly1900’s,manypeopleintheUnitedStatesbegantoworryaboutth
Bytheearly1900’s,manypeopleintheUnitedStatesbegantoworryaboutth
Bytheearly1900’s,manypeopleintheUnitedStatesbegantoworryaboutth
Bytheearly1900’s,manypeopleintheUnitedStatesbegantoworryaboutth
Bytheearly1900’s,manypeopleintheUnitedStatesbegantoworryaboutth
[originaltext]Peoplehavebeenpaintingpicturesforatleast30,000years.
[originaltext]Aroundtheworldmoreandmorepeoplearetakingpartindang
[originaltext]Aroundtheworldmoreandmorepeoplearetakingpartindang
[originaltext]Theword"okay"isknownandusedbymillionsofpeopleallo
随机试题
DespiteDenmark’smanifestvirtues,Danesnevertalkabouthowproudtheyar
SecretsofGrade-AParentsA)WhenCareyGrahamstartedGradeOne,hego
Thesungivesofflightandwarmth,______(这使植物生长变为可能)whichmakesitpossiblefor
运动神经纤维末梢释放Ach属于:( )A.主动转动 B.异化扩散 C.单纯
(2021年真题)在未获得董事会席位的情况下,股权投资基金有时会希望委派人员出任
关于股票质押式回购业务的相关规则,下列说法正确的是()。A.证券公司代理进行
男性,54岁,既往有哮喘及冠心病史,咳嗽咳痰喘息来急诊室。体检:BP140/90
根据我国《担保法》的规定,不得抵押的财产有( )A.土地所有权 B.抵押人所
有机磷中毒时,可使A.胆碱酯酶活性减少 B.胆碱酯酶活性增加 C.乙酰胆碱释
下列影响施工质量的因素中,属于材料因素的有()。A.计量器具 B.工程设备
最新回复
(
0
)