题目

阅读理解For many people the subject of hiccups (嗝) is a joke, but for Harry Mendes, a fifteen-year-old schoolboy from Birmingham, it was something quite different.His hiccups began one Sunday lunch time and continued day and night for two weeks. After the first week, Harry's parents took him to hospital, but it took another week for the doctors to cure his attack.Harry, who is now back at school, described what happened to him. “When I began to hiccup, I drank a glass of water but that didn't do any good. That evening I had hiccups every four seconds. We tried everything to stop them. 设函数的定义域为D，如果存在正实数，使对任意，都有，且恒成立，则称函数为D上的“型增函数”．已知是定义在R上的奇函数，且当时，，若为R上的“2012型增函数”，则实数的取值范围是      ．