問題詳情

42. According to the passage, which of the following statements is NOT true about Li-Fi?
(A) It passes through concrete walls.
(B) It was first introduced in 2011.
(C) It transmits data at high speed.
(D) It may help with parenting.

參考答案

答案:A
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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