试题分类:英语 For any information system to serve its purpose, the information must be( )when it is needeD A、integral B、available C、irreplaceable D、confidential 试题出处:http://www.ruantiku.com/shiti/3268220382.html 在下面提交答题后即可查看答案与考友试题分析 信管网参考答案:B 信管网解析:进入软题库查看解析 查看更多英语试题>>