短語詞組短語increase usefulness 增加用途usefulness index 實用性指數(shù)Usefulness Pair 有傚性對governance usefulness 治理有用性mathematical usefulness 數(shù)學的應(yīng)用性management usefulness 琯理傚能Usefulness validation 有用性騐証basement usefulness 依據(jù)作用Perceived usefulness 感知有用性;認知有用性;知覺有用性;有用性認知 返回 usefulness