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37.下列各組物質的化學式,均以分子式表示的是: (A) N2、HCl、NH3 (B) SiO2、CO2、 H2O (C) H2SO4、HBr、C2H5OH (D) MgO、NO、SO2 (E) He
問題詳情
37.下列各組物質的化學式,均以分子式表示的是:
(A) N2、HCl、NH3
(B) SiO2、CO2、 H2O
(C) H2SO4、HBr、C2H5OH
(D) MgO、NO、SO2
(E) He、Cu、C
參考答案
答案:[無官方正解]
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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