移动通信的工作方式可分为单向通信方式和双向通信方式两大类别，而后者又分为()。
A、单工通信方式ABC
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Wetrustyouwilldoyourbesttohavethismatter__________rightaway.()
___youlikeotheritems,kindlyletusknowandweshallbeonlytoopleasedtomakeyouoffersdirect.()
WhichofthefollowingisnotmentionedasWTO'sobjective?
Thefirsttaskofabrochureisto_______.
PoorspeakerofEnglishthoughhewasatthetime,hestillmanagedtomakehimself________.
