Though it rained hard, a lot of fans were waiting at the exit of the airport, __________ to see their famous pop stars.

A．eager

B．greedy

C．nervous

D．curious

患者，男性，10岁，主要表现为尿失禁，MRI检查示脊髓圆锥下移至骶2水平，终丝变粗，横径约3mm。根据以上表现，最可能的诊断是（）

A.脊膜膨出

B.脊髓脊膜膨出

C.脊髓栓系综合征

D.脊髓圆锥肿瘤

E.马尾肿瘤