80.承上題,那一條線是同重素線?
(A)1
(B)2
(C)3
(D)4
答案:登入後查看
統計: A(57), B(51), C(1053), D(134), E(0) #966397
統計: A(57), B(51), C(1053), D(134), E(0) #966397