Our list, done by the American hospital Directory, is based on operating income figures that hospitals must report to the federal Medicare program each year.

这张榜单由美国医院名录公司(American Hospital Directory)完成，数据来源于每家医院必须向联邦医保项目提交的年度收入报告。

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For example, when you use ls, which reads the contents of the specified directory, it sends the list of files to the standard input of the program that called it (the shell).

例如，当用ls时，它会读取指定目录的内容，并将文件列表发送给调用它的程序(shell)的标准输入。

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Write a program that searches a directory and all of its subdirectories, recursively, and returns a list of complete paths for all files with a given suffix (like. Mp3).

首先写一个程序，搜索一个目录并且递归搜索所有子目录，然后返回一个全部给定后缀(比如。mp3)的文件的路径。

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Write a program that searches a directory and all of its subdirectories, recursively, and returns a list of complete paths for all files with a given suffix (like. Mp3).

首先写一个程序，搜索一个目录并且递归搜索所有子目录，然后返回一个全部给定后缀(比如。mp3)的文件的路径。

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