找出不同类的单词。

一位名叫刘洪滨的“老专家”被发现多次出现在各大电视台的“健康医药”节目中，参与推广的药品其功能也是五花八门。有时候是苗医传人，有时候是蒙医传人，偶尔还会客串一下北大专家和医院退休的老院长……由于刘洪滨出现在电视画面中的身份完全不同，也被网友戏称为“虚假医药广告表演艺术家”。随着国家中医药管理局等多个官方机构介入，这位“百变神医”的“演艺之路”走到了尽头。

世界上使用最广泛的语言是（      ）

“兼容统一、秩序与自由的价值，非平衡地利用君主制、贵族制和民主制的优点，营造出一个国家利益与个人利益共同发展”的政体。确立这种“政体形式”的法律文件最有可能是 （  ）

根据短文内容，完成下列小题。

    During the summer holidays there will be a new schedule(时间表).

    Changes for meal and library service hours and for bus schedules will be shown on the wall outside the dining room. Weekly film and concert schedules, which are being made, will be shown each Wednesday outside the library.

    Buses to the town center will leave the North Beijing every hour on the half during the day. The dining room will serve three meals a day from 7:00 a.m. to 7:00 p.m. during the weekdays and two meals from noon to 7:00 p.m on weekends. The library will continue its usual hours during the weekdays, but have shorter hours on Saturdays and Sundays. The weekend hours are from noon to 5:00 p.m.

    All students who want to use the library borrowing service must have a new summer card. This announcement(通知) will also be shown in the next week's student newspaper.