A.文字B.圖像C.音頻D.視頻
A.補(bǔ)碼B.原碼C.反碼D.以上都是
A.數(shù)據(jù)刪除B.數(shù)據(jù)采集C.數(shù)據(jù)備份D.數(shù)據(jù)標(biāo)注結(jié)果