A.脊髓水腫、變性,神經(jīng)細(xì)胞腫脹 B.神經(jīng)細(xì)胞脂質(zhì)沉積 C.脊髓軟化、壞死、出血 D.神經(jīng)髓鞘脫失、軸突變形 E.神經(jīng)膠質(zhì)細(xì)胞增生