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  3. What is the most important service of trees to man according to the passage? Why do forests in many parts of the world slowly d

What is the most important service of trees to man according to the passage? Why do forests in many parts of the world slowly d

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问题 What is the most important service of trees to man according to the passage?
Why do forests in many parts of the world slowly disappear?
选项 A、New trees are not looked after properly.
B、Many trees have been cut down by man.
C、Man has not paid enough attention to planting trees.
D、All of the above.
答案D
解析 细节题。从第二段“In eagerness to make money from trees，men have cut them down in large numbers．And besides，men are usually too careless to plant and look after new trees．”可知：人们为了获得树木所带来的经济利益，大量砍伐树木并不注意种植和照看新树。
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