You are usually too little knowledge, so you blame others, but if you learn some RFID applications knowledge, you will not be so embarrassing, although friends say no comfort me, but I think he said yes, this is all the reason I myself, if my own RFID applications to learn some more knowledge, I do not like this, and now this RFID applications used so widely, I didn’t know this also can not blame others, so I think I should draw lessons, to learn some knowledge about RFID applications, so then, after the encounter, I also know how to use.