B. Cold-knife conization is the best method for diagnosis of AIS. Adenocarcinoma in situ (AIS) of the cervix is characterized by endocervical glands lined by atypical columnar epithelial cells.

• 冷刀锥切是诊断原位腺癌的最好方法。宫颈原位腺癌的特征是宫颈管腺体被不典型柱状上皮细胞覆盖。