問題詳情
7. ( ) How do dolphins see the objects?
(A)Use smartphones
(B) By the Internet
(C)We don’t know
(D)By the echolocation
(A)Use smartphones
(B) By the Internet
(C)We don’t know
(D)By the echolocation
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
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