问题描述：
英语翻译
which captures the incremental change in crash risk for mandatory adopters after 2005 relative to the change for the benchmark group.英语牛人进,1小时内有效.
which captures the incremental change in crash risk for mandatory adopters after 2005 relative to the change for the benchmark group.英语牛人进,1小时内有效.
问题解答：
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