负盈利套利打法是什么

简介：Luo Xi made a phone call with the counselor at the university and prepared to apply for a leave of absence. Jilin University told her that she would have to come to the school in person to apply for a leave of absence. Fortunately, the counselor said that she could write a request for leave and wait until her condition got better. Luo Xi breathed a sigh of relief when he came over to handle it.