A.稀溶液的依數(shù)性與溶質(zhì)的粒子數(shù)有關(guān) B.稀溶液的依數(shù)性與溶劑有關(guān) C.難揮發(fā)非電解質(zhì)稀溶液的沸點(diǎn)低于難揮發(fā)電解質(zhì)稀溶液 D.濃溶液的凝固點(diǎn)比純?nèi)軇┑哪厅c(diǎn)低
A.H2NCH2NH2 B.H2NCH2CH2CH2CH2NH2 C.H2NCH2CH2NH2 D.H2NCH2CH2CH2CH2CH2CH2NH2