You can bring it in, but the teacher will check it. In fact, even if it is a transparent routine, he will check it. Better bring a beautiful one. Besides, you can't bring your watch for two years. If you bring something with packaging tape, some teachers will let you tear it off and throw away the abnormal refill! As long as you have a clear conscience, you are not afraid of them. Don't be too nervous! Review well, come on for the college entrance examination!