A: oxygen
B: acid rain
C: fertilizers
D: waste material
举一反三
- Lakes, rivers and underground water supplies have all been badly polluted by lightly regulated industry.
- Many lakes and rivers ________ by industrial waste. A: A have polluted B: B have been polluted C: C had been polluted D: D has been polluted
- Many lakes and rivers have been ________by industrial waste. A: pollutes B: polluted C: pollution
- Many lakes and rivers have been( )by industrial waste. A: damaged B: injured C: polluted D: destroyed
- Many lakes and rivers have been ________by industrial waste. A: polluting B: ruined C: crashed D: polluted
内容
- 0
Many lakes and rivers have been ( )by industrial waste. A: public B: put C: polluted D: pollutE
- 1
Many lakes and rivers have been___by industrial waste. A: polluted B: polluting C: pollute D: to pollute
- 2
5. Many lakes and rivers have been ________by industrial waste. A: smog B: pollution C: polluted D: smoging
- 3
It is reported that air pollution affects rivers and lakes indirectly because it causes acid rain.
- 4
Which of the following is NOT true? A: Acid rain also damages buildings and railway railings. B: Acid rain kills plants and water animals but is not really harmful to humans. C: Acid rain may attack the regions where it is formed and other regions as well. D: Smoke from factories and power-stations in the USA is the main cause of acid rain in Canada.