問題詳情

47 According to the passage, where in the world is the problem of clean water supply most serious?
(A) The developed world
(B) The underdeveloped world
(C) The natural world
(D) The developing world

參考答案

答案:D
難度:適中0.527778
統計:A(9),B(6),C(2),D(19),E(0)

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