25岁的李某是否有参加有组织的灭火工作的义务？

单项选择题4. She decided to buy that car because it used less gasoline and had the two ________ she couldn't live without: a GPS and a CD player. A. alternatives B. accessories C. artifacts D. attributes

单项选择题外交部及有关驻外使领馆发布的海外安全提醒，由低到高分为“（）”“（）”和“（）”三个级别。