A.Do you

B.Have you

C.Are you

operating system to allow the computer to communicate with the device．

A．application

B．software

C．driver

D．files

A.used

B.uses

C.using

D.ues

（repair) I wonder if this is the computer you want to have it __.

A.A

B.B

C.C

D.D

u can interact with your desktop when you are prompted for user account control permissions.What should you do？（）

A.A

B.B

C.C

D.D

A.A

B.B

C.C

D.D

You ______ all those calculations! We have a computer to do that sort of thing.

A) needn't have done B) must not have done

C) should not have done D) can not have done

rd and thecomputer becomes unresponsive. You need recover the computer in the minimum amountif time. What should you do （）

A．Restartinsafemodeandthenrollbackthevideocarddriver．

B．Restartinsafemodeandthenrevertthecomputertoapreviousrestorepoint．

C．StartthecomputerfromtheWindows7installationmediA．SelectRepairyourcomputerandthenselectSystemRestor

E．

D．StartthecomputerfromtheWindows7installationmediA．SelectRepairyourcomputerandthenselectSystemImageRecovery．

A.I have got the certificate.

B.I can use computer well.

C.Yes, I have worked as a sales man for one year.