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
56
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:https://www.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
[img]ct_epebm_epeblisttp_00046(200912)[/img][br][originaltext]Ihavegotasm
ProductInvoice1setofbedsheets.........$29.992curtains.................
HowtoDevelopanOutlineI.ApreliminaryoutlineA.
假设系统采用PV操作实现进程同步与互斥。若n个进程共享两台打印机,那么信号量S的
在使用TCRM型断面仪多功能断面测量分析系统进行测量扫描时,可将线路的平面定线参
桥梁静载试验的荷载等效计算中,我们只需保证控制截面的荷载效率满足规定即可,而车辆
什么是概念转变?根据波斯纳(G.J.Posner)的观点,影响概念转变的基本条件
下列哪项不是β受体阻断药的适应证A.高血压 B.甲状腺功能亢进 C.窦性心动
农产品质量安全检测的法律体系中,《基本农田保护条例》属于()法律。A:综合性
根据《标准化法》,下列标准中不能制定为强制性标准的有()。A.行业标准 B.
最新回复
(
0
)