I am straight, bareheaded, etc. According to the photo announcement of the re-examination certificate issued by the postgraduate entrance examination, the photo of the re-examination certificate requires an electronic photo of my face, bareheaded, makeup-free, and color head, which supports jpg or jpeg format, the size is no more than 10M, and the aspect ratio is 3:4. The re-examination for postgraduate entrance examination is a further examination of candidates' professional level and practical ability on the basis of passing the initial examination.