腰麻穿刺进入蛛网膜下隙的部位俗称（）
A.脊髓
B.终池
C.马尾
D.腰膨大
E.脊髓后根
参考答案：B
Many people complained about the stones scattering on a roadway, but ______ did anything about getting the stone out of the way.
A．neither
B．both
C．none
D．all
泌尿及男性生殖系统肿瘤中，最常见的是（）。
A.肾肿瘤
B.膀胱肿瘤
C.输尿管肿瘤
D. * * 肿瘤
E.阴茎肿瘤
