8.腰椎椎間盤突出，90%發生在那個地方？
(A)L1-2 and L2-3
(B)L2-3 and L3-4
(C)L3-4 and L4-5
(D)L4-5 and L5-S1

答案：登入後查看
統計： A(4), B(7), C(76), D(359), E(0) #2184273