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THE BIGGEST CAUSE OF ______ GLOBAL WARMING IS CARB...
THE BIGGEST CAUSE OF ______ GLOBAL WARMING IS CARBON DIOXIDE EMIS...
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31. The biggest cause of ______ global warming is carbon dioxide emissions from coal burning power
plants.
A. an
B. a
C. ---
D. the
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31.
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File thứ 1: anh11new_231201916