还剩8页未读,继续阅读
本资源只提供10页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
文本内容:
2019年12月英语四级听力答案(卷二网友版) 短篇新闻 News1 Adevicethatweighslessthanonekilogramispartofamissionthatwillallowscientiststodeliverfourthgenerationor4Gmobilecoveragetothemoonin2019Ifsuccessful,thetinydevicewillprovidethemoonwithitsfirstevermobilephonenetworkThelunarnetworkwillsupporthighdefinitionstreamingofvideoanddatabetweenthemoonandearthThenetworkispartofamissiontothemoonThisisaprojectwiththegoaloflandingthefirstprivatelypaidformissiontothemoonThe4GmissionissettolaunchfromCapeCanaveralintheUnitedStatesonaspaceXFalcon9rocketin2019MissiontothemoonintendstoestablishandtestthefirstelementsofacommunicationsnetworkonthemoonThescientistsworkingontheprojectoptedtobuilda4Gratherthanafifthgenerationor5GnetworkThisisbecausefifthgenerationnetworksarestillintestingandtrialphasesThismeansthata5Gnetworkmaynotyetbestab...。