39 What is the main idea of this passage?
(A)the disappearance of food supply
(B)the importance of environmental protection
(C)the misuse of pesticides
(D)the threats of parasites
詳解 (共 1 筆)
未解鎖
近年來，蜜蜂的突然消失引起了科學家的關注...
私人筆記 (共 1 筆)
未解鎖
absent：缺少的Snow is ab...
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