問題詳情
28. Why do farts smell bad?
(A) The air is bad.
(B) They contain sulphur
(C) Food is digested quickly
(D) They are from bacteria.
(A) The air is bad.
(B) They contain sulphur
(C) Food is digested quickly
(D) They are from bacteria.
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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