A preview now shows three columns with subject, number, and last modification date.
预览现在显示三列，它们是主题、数量和最后一次修改日期。
2
A simple modification of the presented approach allows you to control the number of concurrent applications for a set of resources
对以上方式做一项简单的修改，就可以控制同时访问一个资源集的应用程序数量
3
This fact will be used by the modification shown below to create a simple count of the number of deviations between the current waveform and all of the stored voice prints from the *.vertex files.