RPC模型中的通信通常是同步的，并且请求的操作通常代表了细致且个别的工作项(例如：检查一个订单的状态)。
Communication in the RPC model is most often synchronous, and requested operations generally represent fine-grained, individual work items (for example, checking on the status of an order).
DOM资源管理器(DOM Explorer)使得开发者可以检查并操作HTML页面中的文档对象模型(Document Object Model)。
The DOM Explorer allows developers to examine and manipulate the Document Object Model of an HTML page.
样本的下载版本包括一个测试驱动程序，还有一些添加的代码用于通过计算元素、删除和添加的个数来检查不同模型的操作。
The download versions of the samples include a test driver and also have some added code for checking the operation of the different models by counting elements, deletes, and adds.
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