多发性硬化是一种
A.螺旋体感染病
B.脱髓鞘疾病
C.维生素b12缺乏病
D.脂类代谢病
E.神经系统变性病
正确答案：B。
解析：多发性硬化是一种青壮年时期缓慢进展的中枢神经系统白质脱髓鞘疾病，病因尚不明确。
多发性硬化小提示
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本期编辑：茱莉
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