[解析]
(1)B.细节理解题.根据第一段第一句A university in southwest China's Chongqing City set up a reading room as part of acampaign (活动) that stops students from taking their mobile phones with them in case the device distracts (使分心) them from concentrating on their studies(在中国西南的重庆市的大学建立一个阅览室作为阻止学生带手机活动的一部分,以防手机分散(使分心)他们学习的注意力).可知重庆市开这家阅览室的原因是帮助学生专注于他们的学习,选B.
(2)C.推理判断题.根据第三段第五句Based on the time students hand in their phones when they come to the reading roomand the time they get them back when they leave the room(根据学生来阅览室时上交手机的时间和他们离开教室时取回手机的时间)可知手机被放入包里的时间是有记录的,选B.
(3)B.推理判断题.根据文章最后一句Some Internet users praised the campaign.One user named Liu Jingchang said"It'sgoodI don't bring my phone when going to the library in case I get distracted(一位名叫刘景昌的用户说:"这很好,我去图书馆时不要带手机,以免分心.)."可知学生对于这间阅览室持支持态度,选B.