However, most of the time, you'll want to work on the main branch (what CVS calls the HEAD), so select trunk, and click Next.
而大多数时候,您都希望在主分支上工作(CVS称之为HEAD),因此选择trunk并单击Next。
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Simplicity: the program can use these node tests to select a group of elements based on their common group head element or type definition rather than enumerate all concrete element names one by one.