在數據庫系統中，當數據庫的模式改變時，用戶程序可以不做改變，這是數據的
A、位置獨立性D
暫無解析
Nowherebutintheremotestregionofthecountry____findaplacetosettledown.
LastFridayIsawsomeboys______behindDaniel,_____thecomputergames.
Finally,thethiefhandedeverything____hehadstolentothepolice.
Thereis______littleinformationabouthimthatwehave______muchdifficultyfindinghim.
The____ofAIDShasledtoanexpansioninresearchseekingacure.
