11.哪一個化合物含最高的氮質量百分比?
(A)NH2OH (M = 33.0)
(B)NH4NO2 (M = 64.1)
(C)N2O3 (M = 76.0)
(D)NH4NH2CO2 (M = 78.1)
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統計: A(0), B(5), C(0), D(2), E(0) #875005
統計: A(0), B(5), C(0), D(2), E(0) #875005