问题
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Which of the following is NOT the reason to stop bottom trawling?A.The deep sea is pollute
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Which of the following is NOT true about the maps of sea ice movements?A.They are the rese
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Which of the following is NOT true about the maps of sea ice movements?A.They arc the rese
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Which of the following statements about resources
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Which of the following statements about the funct
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Which of the following statements about the funct
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