swap(&arr[0], &arr[i]); // 堆顶(最大)换到末尾
"Do your homework, listen to your teacher, pay attention in class and read books, and that will give you something to focus on," she says in a matter-of-fact way.
Stephen StaffordBBC News, South
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“中国人不仅教会我们种地，更教会我们如何组织起来，共同发展。”合作社成员罗希·萨马特对记者说，“以前我们种水稻只是为了糊口，现在，我们找到了一条通往富裕的道路。”
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