問題詳情
20. 索氏(Soxhlet)萃取器之冷凝水入口應裝於冷凝管之
(A)上方
(B)下方
(C)中間
(D)皆可。
(A)上方
(B)下方
(C)中間
(D)皆可。
參考答案
答案：B
難度：簡單0.777778
統計：A(1),B(7),C(1),D(0),E(0)
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