問題詳情
【題組】41. The microchip mentioned in the article _____.
(A) must be swiped over a sensor machine to make it work.
(B) is about the size of a cell phone.
(C) is as valid as a subway card.
(D) is inserted into the spinal cord to hinder spinal nerves.
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)