問題詳情
【題組】How did the scientists at that time get to the higher sky?
(A) by airplane
(B) by balloon
(C) by spaceship
(D) by glider
參考答案
答案：B
難度：簡單0.8583
統計：A(8),B(212),C(14),D(5),E(0) #
個人：尚未作答書單：關係代名詞
用户評論
【Sharon Hu】評論
In balloons they went higher in the air than anyone had ever gone before.