【简答题】Smartphone ,poor sight Look around and you’ll see people busy on their smartphones. Smartphones do make our lives easier . But have you ever thought about what they mean to you eyes? According to a st...
【单选题】310“希望酒店能提高管理水平”的投诉,一般采用的方式是
【判断题】Many college students are using smartphones to entertain themselves.
【判断题】Many college students are using smartphones to entertain themselves.
【简答题】What did a 2015 study find about using smartphones?