A.chgrp B.chuser C.edit /etc/user D.edit /etc/security/group
A.經(jīng)濟(jì)B.安全C.發(fā)展D.主權(quán)
A.改變銷售觀念B.轉(zhuǎn)型升級(jí)C.提供傳統(tǒng)服務(wù)