A.2mm B.3mm C.4mm D.5mm E.6mm
A.畸胎瘤 B.松果體細(xì)胞瘤 C.膠質(zhì)瘤 D.生殖細(xì)胞瘤 E.表皮樣囊腫
A.息肉 B.黏液囊腫 C.黏膜囊腫 D.血管瘤 E.正常變異