首页
登录
职称英语
[originaltext] The very success of satellite communications systems has rais
[originaltext] The very success of satellite communications systems has rais
游客
2024-02-14
30
管理
问题
The very success of satellite communications systems has raised widespread concern about their future. Some countries are already using satellites for domestic communications in place of conventional telephone lines on land. Although this technique is extremely useful for linking widely scattered villages in remote or mountainous regions, in heavily built-up areas where extensive telephone and telegraph systems already exist, domestic satellites are seen by the land-line networks as unfair competition. Despite such opposition, domestic satellites are gaining support from many businesses and public interest groups in the United States and seem likely to be more widely utilized in the future.
选项
A、They can be built to be very light.
B、They are inexpensive to operate.
C、They can be directed by remote control.
D、They easily connect distant points.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3450144.html
相关试题推荐
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
[originaltext]W:Hello,Gary.How’reyou?M:Fine!Andyourself?W:Can’tcomp
[originaltext]W:Hello,Gary.How’reyou?M:Fine!Andyourself?W:Can’tcomp
[originaltext]InmanyAmericanuniversitiesthetotalworkforadegreecon
[originaltext]RobertEdwardswasblindedinanautomobileaccidenttrineye
[originaltext]RobertEdwardswasblindedinanautomobileaccidenttrineye
[originaltext]Guidedogsaretrainedforthepurposeofguidingablindper
[originaltext]W:Doyouthinkfamilieshavechangedmuchinthelast50years?
[originaltext]W:Doyouthinkfamilieshavechangedmuchinthelast50years?
[originaltext]Reporter:So,David,youworkforacompanythatmakesdyesforp
随机试题
Concernwithmoney,andthenmoremoney,inordertobuytheconveniencesand
HowmanyU.S.dollarswillbeinvestedintheproject?About______million.[br
[originaltext]M:MayIspeaktoPetty?W:Speaking.M:Goodmorning,Petty.W:
[originaltext]W:Pleasehaveaseat,Mr.Saunders.Ireceivedyourresumelast
TheStockExchangeisinturmoilfoll
患者,女,38岁。大面积烧伤后5小时入院,心率120次/分,血压70/50mmH
在社会保险的分担方式中,( )方式有利于增强雇主的安全意识、减少灾害事故,减轻
在激烈的市场竞争中,企业应当从自身的内外环境和资源条件出发,( )。A.根据企
关于中国古代的契约、婚姻和继承法律制度,下列哪一选项是错误的?() A.西周
关于隧道施工供电线路安装要求的说法,不符合规定的是()。A.成洞地段固定的电线
最新回复
(
0
)