A.星形細胞瘤 B.少突膠質(zhì)細胞瘤 C.髓母細胞瘤 D.室管膜瘤 E.多形性膠質(zhì)母細胞瘤
A.20%~30% B.30%~40% C.40%~50% D.50%~55% E.>55%