問題詳情
【題組】73. It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
(A) consists of a flight device and a control system
(B) can just fly in limited areas at the present time
(C) can collect information from many sources
(D) has been put into wide application
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)