問題詳情
【題組】( )49 According to the reading,dolphins use whistles to do many things except(除了…之外) _____.
(A)giving directions
(B)surprising humans by chance
(C)keeping in touch with other dolphins
(D)telling other dolphins about dangers ahead
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增
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