7 下列何者不是膠凝劑?
(A) alginic acid
(B) benzoic acid
(C) cetostearyl alcohol
(D) propylene carbonate
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統計: A(6), B(107), C(34), D(22), E(0) #485056
統計: A(6), B(107), C(34), D(22), E(0) #485056
