Compared to other projects, cloud whitening ________.

试卷相关题目

• 1The fourth paragraph mainly tells us ________.

  A.ways to deal with climate change

  B.the costs to deal with climate change

  C.cloud whitening costs much less than other projects

  D.leading nations waste much money in cutting CO2 emissions

  开始考试点击查看答案
• 2“Marine cloud whitening” has an effect on global warming by ________.

  A.cutting sunlight

  B.sending cold air into space

  C.cooling water in the air

  D.cooling air with water

  开始考试点击查看答案
• 3Finger-prints have often been used as a method of solving criminal cases because it ________.

  A.is complicated but reliable

  B.is simple and not expensive

  C.is expensive but easy to do

  D.can bring a lot of money

  开始考试点击查看答案
• 4Some criminals remove their own finger-prints by ________.

  A.using printer’s ink

  B.injuring the inner skin

  C.damaging the outer skin

  D.damaging the colour

  开始考试点击查看答案
• 5If your fingers are wounded by knife, fire or other means, the structure of skin will ________.

  A.be changed partly

  B.be replaced by a different one

  C.be the same when the wound is recovered

  D.become ugly

  开始考试点击查看答案
• 6It can be learned from the last two paragraphs that cloud whitening ________.

  A.helps us learn more about global warming

  B.means cutting CO2 emissions

  C.is the best way to deal with climate change

  D.can’t stop global warming basically

  开始考试点击查看答案
• 7If 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.

  开始考试点击查看答案
• 8Which of the following is NOT mentioned in the text that contributes to the different amount of energy a computer consumes、

  A.Whether it is a laptop or a desktop computer.

  B.What kind of work the computer is dealing with.

  C.The choice of how you use your computer.

  D.Whether the operating systems are new.

  开始考试点击查看答案
• 9When does a computer consume the most energy、

  A.When we let it remain idle.

  B.When we use it to do complex calculations.

  C.When we use it to type some documents and e-mail.

  D.When we use it for surfing the Internet.

  开始考试点击查看答案
• 10The reason why a desktop computer uses more energy than a laptop computer is that________.

  A.a desktop computer’s monitor is separate and often larger

  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 energy-efficient

  开始考试点击查看答案