题目内容
脊髄被膜由外向内依次为（ ）。
2021-10-14
A.硬脊膜、蛛网膜、软脊膜
B.硬脊膜、软脊膜、蛛网膜
C.软脊膜、蛛网膜、硬脊膜
D.软脊膜、硬脊膜、蛛网膜
E.蛛网膜、硬脊膜、软脊膜
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