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  3. What can people know from the crown of an ancient tree found in New York? According to the fossil reconstruction, what main par

What can people know from the crown of an ancient tree found in New York? According to the fossil reconstruction, what main par

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问题 What can people know from the crown of an ancient tree found in New York?
According to the fossil reconstruction, what main parts did a tree comprise?
选项 A、It comprised a trunk, vertical ridges and palms.
B、It comprised leaves, ferns and palms.
C、It comprised stumps, branches and palms.
D、It comprised a base, a trunk and a crown.
答案D
解析 根据题干中the fossil reconstruction，可以定位到第四段。这段提到了通过化石的重组，科学家们断定一棵由全部这些部分组成的树会长到30英尺高，这些部分主要是指结实的根基部，巨大的树干和没有叶子的树冠。题目问的是组成树的主要部分，vertical ridges不是主要部分，它属于树干，而palms不是组成古树的一部分，故可排除A；leaves，ferns and palms都不是组成树的部分，故可排除B；stumps and palms不是组成树的部分，而branch不是主要部分，故可排除C。
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