問題詳情
【題組】19. How did YouTube’s popularity spread in the beginning?
(A) It was advertised on Google.
(B) People told one another about it.
(C) There was a news story about it.
(D) It offered free music downloads.
參考答案
答案：B
難度：適中0.483568
統計：A(33),B(103),C(26),D(51),E(0)
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