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附上段落原文
: : The transition from forest to treeless tundra on a mountain slope is often a
: : dramatic one. Within a vertical distance of just a few tens of meters, trees
: : disappear as a life-form and are replaced by low shrubs, herbs, and grasses.
: : This rapid zone of transition is called the upper timberline or tree line. In
: : many semiarid areas there is also a lower timberline where the forest passes
: : into steppe or desert at its lower edge, usually because of a lack of
: : moisture.
: 其實 1) 是錯的!!
: 關鍵句子在這
: Within a vertical distance of just a few tens of meters, trees disappear as a
: life-form and are replaced by "low shrubs", herbs, and grasses.
: 查一下英英字典可以知道shrub的定義
: shrub : a large plant that is smaller than a tree and that has several stems
: of wood coming from the ground
: shrub是一種比樹還矮小的植物
: so, it does not mean that the upper and lower timberlines are treeless zones.
1)是錯的沒錯，不過你的解釋反而誤導了。 重點不再shrub 是不是 tree，或是有沒有樹
文章中沒說，我們根本不必去琢磨。
這段非常明顯就是在定義upper tree line & lower tree line，所以當然不是定義兩者
是無樹的地區。 1) 當然就不對了。 毫無疑問的選 2) 囉
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附上段落原文
: : The transition from forest to treeless tundra on a mountain slope is often a
: : dramatic one. Within a vertical distance of just a few tens of meters, trees
: : disappear as a life-form and are replaced by low shrubs, herbs, and grasses.
: : This rapid zone of transition is called the upper timberline or tree line. In
: : many semiarid areas there is also a lower timberline where the forest passes
: : into steppe or desert at its lower edge, usually because of a lack of
: : moisture.
: 其實 1) 是錯的!!
: 關鍵句子在這
: Within a vertical distance of just a few tens of meters, trees disappear as a
: life-form and are replaced by "low shrubs", herbs, and grasses.
: 查一下英英字典可以知道shrub的定義
: shrub : a large plant that is smaller than a tree and that has several stems
: of wood coming from the ground
: shrub是一種比樹還矮小的植物
: so, it does not mean that the upper and lower timberlines are treeless zones.
1)是錯的沒錯，不過你的解釋反而誤導了。 重點不再shrub 是不是 tree，或是有沒有樹
文章中沒說，我們根本不必去琢磨。
這段非常明顯就是在定義upper tree line & lower tree line，所以當然不是定義兩者
是無樹的地區。 1) 當然就不對了。 毫無疑問的選 2) 囉
--
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