阿摩線上測驗
41. What is the primary reason for using facial recognition technology at sports events?
(A) To help locate lost spectators in large stadiums.
(B) To analyze crowd behavior for commercial purposes.
(C) To identify potential troublemakers for venue security.
(D) To keep track of the attendance of ticket holders.
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統計： A(15), B(23), C(138), D(9), E(0) #3347667
統計： A(15), B(23), C(138), D(9), E(0) #3347667
