动态 UI 的最简单形式是使不可用的菜单项或按钮变灰的 UI。
The simplest form of dynamic UI is one that grays out menu items or buttons that are unavailable.
新的菜单项stats以dtd实体的形式提供，对用户看到的标签使用一个经过本地化的字符串。
The new menu item, stats, USES a localized string for the label the user sees, provided as an entity in the DTD I mentioned.
测验项目采用客观题形式(单项选择题)，以0、1记分，最后形成预测试卷四套，每套共80个项目。
The items were adopted in the form of the single choice and the basic score was 0. 1. The research consisted of four tests with each containing 80 items.
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