(2)争杆AD, A+D,-|||-2.以A,B,C分别表示某城市居民订阅日报、晚报和体育报,试用A、-|||-示以下事件:-|||-(1)只订阅日报;-|||-(2)只订阅日报和晚报;-|||-(3)只订阅一种报纸;-|||-(4)正好订阅两种报纸;-|||-(5)至少订阅一种报纸;-|||-(6)不订阅任何报纸;-|||-(7)至多订阅一种报纸;-|||-(8)三种报纸都订阅;-|||-(9)三种报纸不全订阅.