問題詳情
【題組】43. Polar Bears’ fur look white because _____.
(A) they eat too much meat
(B) they have white fur
(C) they are fat
(D) everything around them is white, and their fur is see-through
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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文章段落關鍵字see-through翻譯...