酸雨是属于什么污染 A: water pollution B: air pollution C: soil pollution D: noise pollution
酸雨是属于什么污染 A: water pollution B: air pollution C: soil pollution D: noise pollution
If your speech is on environmental problems, what kind of subtopic might be relatively new and novel?( ) A: air pollution B: visual pollution C: noise pollution D: pharmaceutical pollution E: thermal pollution F: water pollution
If your speech is on environmental problems, what kind of subtopic might be relatively new and novel?( ) A: air pollution B: visual pollution C: noise pollution D: pharmaceutical pollution E: thermal pollution F: water pollution
Environmental pollution
Environmental pollution
Which of the following titles is a proper one? A: What should we do to prevent air pollution? B: An Exploration into the Measures to Prevent Air Pollution C: How does air pollution happen? D: Computer Retrieval
Which of the following titles is a proper one? A: What should we do to prevent air pollution? B: An Exploration into the Measures to Prevent Air Pollution C: How does air pollution happen? D: Computer Retrieval
Generally, there are two kinds of light pollution: ecological pollution and astronomical light pollution. 不属于 common knowledge.
Generally, there are two kinds of light pollution: ecological pollution and astronomical light pollution. 不属于 common knowledge.
environmental pollution A: 环境保护 B: 环境污染
environmental pollution A: 环境保护 B: 环境污染
Now the pollution caused by
Now the pollution caused by
prevention of pollution A: 防污染 B: 治理污染
prevention of pollution A: 防污染 B: 治理污染
Which is NOT the source of Land Pollution?
Which is NOT the source of Land Pollution?
Which is the pollution prevention equipment?
Which is the pollution prevention equipment?