更多"What steps could be taken to improv"的相关试题:
[单项选择]What steps could be taken to improve the air
A. Reduce the amount of nitrogen.
B. Increase the release of oxygen.
C. Reduce nitrous oxide emissions.
D. Stop industrial activities.
[填空题]She could not remember what she had dreamed of, 不管她怎样努力.
[填空题]What languages could his parents speak
[单项选择]What new development has taken place at BellAir
A. They have installed new machinery.
B. They have opened a new workshop.
C. They have bought modern planes.
[多项选择]What may be influenced by air pollutants
A. Humans and animals.
B. The global climate.
C. Vegetations and plants.
D. Mineral materials.
[单项选择]What should be taken into account when deciding the way of supervision over the child
A. The child’s academic performance.
B. The child’s character and personality.
C. The child’s computer skills.
D. The child’s willingness to communicate.
[单项选择]What measure was taken against floods in London in the 1980s（）
A. A flood wall was built.
B. Rescue teams were formed.
C. An alarm system was set up.
D. 50 underground stations were made waterproof.
[单项选择]What causes the indoor air pollution according to the speaker
A. The building method the builders use to save energy.
B. The limit of the flow of air between inside and outside.
C. The use of man-made building materials.
D. The limit of air-flow and the man-made materials.
