It also varies based on the type of work being done: complex calculations requiring intensive processing are more powerhungry, whereas writing or Web browsing consumes far less electricity.
()1.If sleep mode goes wrong, what will probably happen to your computer?
A.It will consume as little energy as possible.
B.It is more likely to be damaged by a virus picked up from the Internet.
C.It will have to be rebooted when used again.
D.It has to be shut down and unplugged.
D. whether the computer systems are new.
()
B.a desktop computer is larger than a laptop computer in size
C.a desktop computer performs more kinds of work than a laptop computer
D.a desktop computer is not energyefficient
()5.Which of the following is implied in the first two paragraphs?
A.Frequent starting and stopping can damage a computer.
B.A computer’s longevity depends more on the proper way you use it.
C.A virus picked up from the Internet is likely to damage a computer.
D.The more often you use a computer, the more smoothly it works.
(二)
When top engineers in Germany wanted to build a more energyefficient car, they headed to the natural history museum to study dolphins and sharks. But it was the boxfish (盒子鱼)that interested them.
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