_____windows before leaving. A: Shutting B: Shut C: To shut D: Do shutting

Which of the following is NOT mentioned in the passage as an instance of attack by a hacker A: Deleting information in the computer's memory. B: Shutting down the computer whenever he wishes. C: Entering your house to steal. D: Spoiling a system for air traffic.

以下（）状态代表板卡已被硬锁。 A: UNLOCKED B: LOCKED C: UNSHUTTING_DOWN D: SHUTTING_DOWN

______the windows before<br/>leaving. A: Shutting B: Shut C: To shut D: Shuts

Could you ____me a favor by shutting the door ? A: do B: help C: get D: give

13. It is better the door than to leave it open. A: shut B: to shut C: to be shut D: shutting

Which of the following is an example of economies of scope? A: Declining average fixed costs due to increasing levels of capacity utilization B: A single computer center supports multiple business units C: Amortization of capitalized software D: The divestiture of a product line E: Shifting production from an underutilized facility to another to achieve a higher overall operating rate and shutting down the first facility

He cannot the noise of the kids. A: put down B: hold down C: pay down D: get down

Would you mind ___________the music? A: turning down B: to turn down C: turned down D: to be turned down

The TV is too loud. Please________. A: turn it down B: to turn it down C: turn down it D: to turn down it