这是一个管理病历的软件，能实现病历的增加、删除和查找等功能，并用到属性页，数据库是ACCESS2000。
This is a records management software, able medical records, delete and search functions, and attributes used pages, the database is ACCESS2000.
第三个例子展示了如何查找某一客户名和如何删除它。
The third example shows how to find a customer name and how to delete it.
添加和删除操作的开销是很大的，只主要是因为对半查找树的平衡性所决定的。
Add and Remove operations are typically expensive since Binary Search Trees require that a tree be balanced.
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