③ the genital disease A uterine deformity a B pelvic tumor(myoma, ovarian tumor aC cervical incompetence. laceration abdominal operation during the pregnancy◼ ③the genital disease ◼ A.uterine deformity ◼ B.pelvic tumor(myoma, ovarian tumor) ◼ C.cervical incompetence, laceration ◼ ④abdominal operation during the pregnancy