176. According to the schedule, what happens at 12:30 P.M.?
(A) A keynote speech begins.
(B) A meal is served.
(C) A video workshop starts.
(D) Registration closes.
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統計: A(5), B(84), C(6), D(4), E(0) #3823476
統計: A(5), B(84), C(6), D(4), E(0) #3823476