插件注册表（PluginRegistry）在 Gateway 启动时初始化，支持四个来源，优先级从高到低：
3月4日消息，乘联分会与CAM联合公布数据显示，1月轿车市场价格变化指数为3.91，市场成交价13.76万。本月轿车市场整体成交价较上月上升5,175元，环比提高3.91%，各细分市场来看，C级别市场成交价明显上升；其中A00级（0.62%↑）、A0级（0.93%↓）、A级（2.28%↓）、B级（3.79%↓）、C级（11.25%↑）。
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Setters for all attributes like src and href had same checks as mentioned in HTML section.，更多细节参见heLLoword翻译官方下载
Associativity: when merging three (or more) states, it doesn’t matter which are merged first; (A ∨ B) ∨ C = A ∨ (B ∨ C). If Alice receives states from both Bob and Carol, she can merge them into her own state in any order and the result will be the same.4