Which of the following statements about Lake Nyos and Lake Monoun is true、

试卷相关题目

• 1What will happen when Lake Nyos and Lake Monoun explode、

  A.Water will flow down the hills

  B.Poisonous gases will be released suddenly．

  C.strong wind will rise from the lakes

  D.The volcanoes will come to life．

  开始考试点击查看答案
• 2The computer performed better than people in the study because

  A.the computer worked harder．

  B.the computer was not busy

  C.people tended to be biased．

  D.people were not good at statistics．

  开始考试点击查看答案
• 3During the experiment，the subjects were asked

  A.to control the sensors and the camera．

  B.to rate the degrees to which they could be interrupted．

  C.to compare their behaviors with others’．

  D.to analyze all the indicators of interruption．

  开始考试点击查看答案
• 4Scientists at Carnegie Menon University tried to find out

  A.why office doors were often 1eft open．

  B.when it was a good time to turn off the computer．

  C.what questions office workers were bothered with．

  D.which behaviors could tell whether a person was busy

  开始考试点击查看答案
• 5The behavior sensor and software system built in a phone

  A.could help store messages．

  B.could send messages instantly

  C.could tell when it is wise to interrupt you．

  D.could identify important phone calls．

  开始考试点击查看答案
• 6Lake Nyos and Lake Monoun explode because

  A.the gases rise to the top and mix with air．

  B.people from the villages turn over the water．

  C.scientists have put in a computer system．

  D.they have more gases trapped at the bottom than other crater lakes

  开始考试点击查看答案
• 7A team of scientists has

  A.erected a pressure-releasing pipe in the lake

  B.identified the gases at the bottom of the lake

  C.built a beautiful fountain near the lakes

  D.removed all dangerous gases from the lakes

  开始考试点击查看答案
• 8What do we learn from the last paragraph、

  A.Scientists are planning to install pipes in all crater lakes．

  B.Scientists still do not know how to prevent gas explosions

  C.Explosion disasters could be avoided in the future

  D.Warning systems have been set up in the villages nearby．

  开始考试点击查看答案