What are the two speakers talking about?
A. Magic gloves.
B. A traditional gas sensor.
C. Hi-tech transforming working life.
D. BMW’s parts plants.
查看答案
What is the advantages of the gloves?
A. They save on electricity.
B. They are hand-held.
C. They save time and prevent accidents.
D. They improve production.
Where is the award-winning digital gas sensor used?
A. In BMW’s parts plant.
B. In the mining industry.
C. In Germany.
D. In the electricity industry.
What do we learn about the digital gas sensor?
A. It is more accurate than traditional sensors.
B. It monitors the quality of the air when needed.
C. The fans on it work all the time.
D. It changes the dangerous air into fresh air.
What will the newly-launched observation satellite do?
A. It will record carbon dioxide emissions and absorption worldwide.
B. It will identify carbon dioxide emission sources with higher efficiency.
C. It will monitor carbon dioxide levels in Earth’s atmosphere.
D. All of the above.
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