問題詳情

32.
(A) Built-in sensing devices allow people to balance and move without having to learn how to ride it.
(B) It takes more than a good idea though.
(C) The same can be said of inventions.
(D) Kamen’s iBOT is a wheelchair which can “walk” up and down stairs.
(E) He once watched an upset man in a wheelchair trying to get onto a sidewalk.

參考答案

答案:E
難度:計算中-1
書單:沒有書單,新增

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