2. 外语
  3. A、They planted many trees on mountains. B、They lowered their carbon emissions. C、They set aside many private lands and waters. D

A、They planted many trees on mountains. B、They lowered their carbon emissions. C、They set aside many private lands and waters. D

admin2021-09-16  42
问题
选项 A、They planted many trees on mountains.
B、They lowered their carbon emissions.
C、They set aside many private lands and waters.
D、They strengthened the regulation of food safety.
答案B
解析
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大学英语六级

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