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最佳答案:to avoid artificial damageto avoid damage caused by human beings.to avoid delibe
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最佳答案:How surprised he was when he saw the trees were seriously destroyed !
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最佳答案:Not being severely poluted and damaged, the nature will return to its original s
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最佳答案:A site of Tang Dynasty culture was found in our city recently.Some people though
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最佳答案:1.This city left a deep impression on me.2.Many museums were destroyed in the wa
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最佳答案:The great universe is the mankind's mother,we acquire from the nature a lot of,e
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最佳答案:1.The depletion of the ozone layer is the cause of global warming.The direct eff
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最佳答案:As the high sensitivity and relevance of tourist industry, the tourism is easily
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最佳答案:1、why does he spend so much time to learn french by himself?2.if the natrual res