問題詳情
【題組】62. Which of the following statements is true about li-fi according to the passage?
(A) Aside from LED bulbs, sunlight can also be used to activate li-fi.
(B) It can deliver internet access far faster than traditional li-fi.
(C) One of the disadvantages is that it is unable to travel through walls.
(D) One of the drawbacks is that it does not interfere with other radio signals.
參考答案
答案：C
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)