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Three generations of my family have made great achievements, but I was rejected by the college entrance examination invigilator for three consecutive years. The first time I took the college entrance examination, I was dressed neatly and the security check was normal. But just when I was about to step into the examination room, the invigilator hurriedly stopped me after taking a look at my admission ticket. I thought there was something wrong with the admission ticket. For the second college entrance examination, I printed my admission ticket directly online in accordance with national standards. But the invigilator still turned me away after seeing my admission ticket. Until I took the college entrance examination for the third time, I changed my name and city. When I saw that the invigilator was a primary school teacher who had taught me before, I thought I was safe this time. But one second he was still smiling and encouraging me to work hard, but the next second he turned his face on the spot when he saw my admission ticket. After ruthlessly blocking me outside the examination room, he firmly told me that no matter how many times I took the college entrance examination, I would never be able to enter the examination room. I can't figure it out. What's wrong with my admission ticket? Why do all the invigilators refuse to let me enter the examination room as soon as they see my admission ticket even though I have passed the security gate and facial recognition?