在浏览或编辑工作表信息时可以用到它们。
They are useful if you need to view or edit the information in the worksheet.
工作表将包含学生曾经从事过的工作的简短信息，其目的不是成为一份可供搜索的公司清单。
The job table, which will contain brief information about jobs that the students have had, is not intended as a list of companies to be searched.
连接信息保留在工作表中，以便在接收者打开它的时候，它将自动连接到服务器并刷新数据。
The connection information is kept in the worksheet so that, when the receiver opens it up, it connects to the server automatically and the data is refreshed.
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