1. 地点：这个问题可以由以下几个方面来解释:(1)更新地点往往是由随机死亡的成年树木提供的;(2)到达地点(sites)的潜在的新个体,也就是种子,是随机扩散的(3)一个地点的胜利者(winner)是潜在新个体中较强的竞争者,
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1. The United Nations has begun busing refugees out of the reception camp to other sites so they can be better cared for.
2. The authorities in neighboring Zhejiang province busted a ring specializing in spreading porn content via more than 100 WAP sites and arrested 38 suspects.
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3. Temple visits are traditional during the festival and such sites become bustle with visitors.
4. LOS ANGELES - George Clooney personally responded Thursday to rumors circulated by two gossip Web sites.
5. Like other sites of historical interests around the world, the Great Wall is being threatened by damages caused by nature and human activities.
6. UN weapons inspectors searched at least seven suspect sites in Iraq on Monday, and the head of a missile facility accused them of acting like gangsters.
7. The city is still struggling to reduce pollution caused by heavy industry, vehicle emissions and dust generated by thousands of construction sites.
8. An online tracking firm in California said Web sites specialising in gifts and flowers had nearly trebled from this time last year.
9. Seven people were found to have cheated during examinations for driving licences, after the city's traffic management authorities installed remote camera monitoring systems in exam sites.
10. Activists at nearby camping sites were gearing up for clashes Tuesday, and vowed to disrupt the meeting however they could.