Many Chinese museums and art galleries rolled out online exhibitions，courses and other online services，allowing netizens to take virtual tours and enjoy splendid art feasts online. Which one is not the technology support to this service( )。
A．5G
B．Virtual rreality （VR）
C．Ultrahigh definition video
D．Block chain
查看答案
信管網(wǎng)公眾號
信管網(wǎng)訂閱號
收藏 
考試新手指南
學(xué)習(xí)計劃攻略
精華備考資料
案例論文干貨
章節(jié)模擬試題
免費試聽課程
考試信息推送