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
A: air pollution
B: visual pollution
C: noise pollution
D: pharmaceutical pollution
E: thermal pollution
F: water pollution
举一反三
- 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?
- The most important environmental risk factor in low- and middle-income countries is?() A: None of the above B: Unsafe water C: Outdoor air pollution D: Indoor air 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
- Environmental pollution