双下肢周围性瘫痪（）。

A.高颈段脊髓病変

B.脊髓颈膨大病変

C.脊髓腰膨大病变

D.胸段脊髓病変

E.骶段脊髓病変

She suddenly took on full-time work without         her children.     [ ]

A. preparation                

B. preparing    

C. preferring                

D. preceding