問題詳情
【題組】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)