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21.下列數據是五種物質在常壓下所測量出的沸點,何者是混合物? (A)甲(沸點90~120℃) (B)乙(沸點46℃) (C)丙(沸點78℃) (D)丁(沸點100℃) (E)戊(沸點80.1℃)。
問題詳情
21.下列數據是五種物質在常壓下所測量出的沸點,何者是混合物?
(A)甲(沸點90~120℃)
(B)乙(沸點46℃)
(C)丙(沸點78℃)
(D)丁(沸點100℃)
(E)戊(沸點80.1℃)。
參考答案
答案:A
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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