The usual study is not how good, so at work, I was in addition to learning and work related knowledge and other knowledge I never know, so, let me have no interest in other knowledge, but now it is different, I think I should I learn some knowledge, this is good for me, just a few days ago, I saw a friend in the learning RFID applications knowledge, I think the RFID applications is really very wide ah, but I think may be used more about RFID knowledge of applications later in life, so I will follow friends learn this knowledge, this is the one I change before that idea.