这些规则控制了作用域之间的许可关系，以及作用域中的对象对其他内存区域中的对象的引用。
These rules control both the relationships allowed between scopes and the allowed references from an object in a scope to objects in other memory areas.
最新版本是 1.2006，可以免费下载而无须对许可证有明确的协议，除了在 DTD 中对 cXML 主页的引用外，包中不包含许可证声明。
The latest version, 1.2006, can be downloaded freely without explicit agreement to a license, and the package contains no license statement except for a reference to the cXML home page in the DTD.
带问号的标题更加有趣且表意不明确，这也许可以解释下载和引用次数之间的差别：人们需要下载他们才能知道是否与自己的工作相关。
Maybe question-mark titles are more ambiguous and playful, so you have to download them to see if they're relevant to your work, explaining the mismatch between downloads and citations?
应用推荐