問題詳情

43. What does    it    in the second paragraph refer to? 601a6281d2f5e.jpg refer 關於…;指的是…
(A) Braille system.
(B) The communication between soldiers.
(C) Barbier system.
(D) Talking to each other in the dark.



參考答案

答案:C
難度:計算中-1
書單:沒有書單,新增

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