题目内容:
For any information system to serve its purpose,the information must be ( ) when it is needed.
A.integral
B.available
C.irreplaceable
D.confidential
参考答案:【答案仅供学习,请勿对照自行用药等】
For any information system to serve its purpose,the information must be ( ) when it is needed.
A.integral
B.available
C.irreplaceable
D.confidential