第1题
All modem______are multitasking and can support running several processes simultaneously.A
All modem______are multitasking and can support running several processes simultaneously.
A.database
B.operating system
C.MIS
D.DOS 第2题
All modem______are multitasking and can support running several processes simultaneously.A
All modem______are multitasking and can support running several processes simultaneously.
A.database
B.operating system
C.MIS
D.DOS
第3题
Files can be lost or destroyed accidentally. Keep(74)copies of all data on removablestorag
Files can be lost or destroyed accidentally. Keep(74)copies of all data on removable storage mediA.
A.backup
B.back
C.black
D.backdown 第4题
Files can be lost or destroyed accidentally. Keep(74)copies of all data on removablestorag
Files can be lost or destroyed accidentally. Keep(74)copies of all data on removable storage mediA.
A.backup
B.back
C.black