問題詳情
【題組】75. What is the text mainly about?
(A)Snake-like robots used in industries.
(B)Snake-like robots made to aid in rescues.
(C)The development of snake-like robots.
(D)The working principles of snake-like robots.
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)