Rives _ used to be polluted by industrial chemical waste.
which
举一反三
- 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
- Many lakes and rivers have been ( )by industrial waste. A: public B: put C: polluted D: pollutE
内容
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Many lakes and rivers have been___by industrial waste. A: polluted B: polluting C: pollute D: to pollute
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5. Many lakes and rivers have been ________by industrial waste. A: smog B: pollution C: polluted D: smoging
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What were the men doing according to the police A: They were treating industrial waste. B: They were tanking industrial waste. C: They were tanking chemicals. D: They were using a tank to mix chemicals.
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The waste gas of cars has only badly polluted the air.
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One of the research area in Green Chemistry is to use renewable feedstocks for chemical production. Which could be used as feedstocks for chemical production in the following resources? A: Kitchen garbage B: Waste cooking oil C: Agricultural wastes D: Microalgae