It is very important that we should not in protecting computer system.
A: display our passwords for everyone to see
B: open unidentified files
C: leave computer terminals on while we are away from our desks
D: all of the above
A: display our passwords for everyone to see
B: open unidentified files
C: leave computer terminals on while we are away from our desks
D: all of the above
举一反三
- We all see that it is very necessary to revise our educational system.
- We should not forget our ( ) for protecting nature.
- We should not forget our ____protecting nature.
- We should not forget our ____________ (responsible) for protecting nature.
- This is a _______ computer, which we just bought for our research.