A.神經(jīng)纖維瘤和神經(jīng)節(jié)細(xì)胞瘤
B.神經(jīng)節(jié)細(xì)胞瘤和中樞性神經(jīng)細(xì)胞瘤
C.神經(jīng)母細(xì)胞瘤和神經(jīng)膠質(zhì)瘤
D.神經(jīng)膠質(zhì)瘤和神經(jīng)節(jié)細(xì)胞瘤
E.神經(jīng)纖維瘤和神經(jīng)膠質(zhì)瘤
A.延髓
B.延、頸髓交界
C.上頸髓
D.錐體交叉上緣
E.以上都不對(duì)