Only ticket-holders were ______ to the stadium for the concert given by Jay Chou,

so many of his fans were turned away. [ ]

A. allowed

B. asked

C. agreed

D. admitted

女性，42岁，楼梯上摔下，双下肢不能活动，腹股沟以下皮肤感觉消失，大小便失禁，3周来院就诊。

该病人最可能的损伤平面定位是（）

A.颈髓

B.胸髓

C.圆锥

D.腰膨大

E.马尾