178. When will Dr. Aris Thorne give his presentation?
(A) 10:15 - 11:15
(B) 11:30 - 12:30
(C) 12:30 - 13:30
(D) 14:00 - 15:00

答案：登入後查看
統計： A(0), B(0), C(0), D(7), E(0) #3823198