A、水蒸气分子量比O<sub>2sub>、N<sub>2sub>小 B、水蒸气分子的极性比O<sub>2sub>、N<sub>2sub>要大 C、水蒸气的凝聚温度比O<sub>2sub>、N<sub>2sub>高 D、水蒸气在空气中含量比O<sub>2sub>、N<sub>2sub>要少
A、水蒸气分子量比O<sub>2sub>、N<sub>2sub>小 B、水蒸气分子的极性比O<sub>2sub>、N<sub>2sub>要大 C、水蒸气的凝聚温度比O<sub>2sub>、N<sub>2sub>高 D、水蒸气在空气中含量比O<sub>2sub>、N<sub>2sub>要少
A、U<sub>1sub>/U<sub>2sub>=N<sub>1sub>/N<sub>2sub>      B、U<sub>1sub>/U<sub>2sub>=N<sub>2sub>/N<sub>1sub> C、N<sub>1sub>/N<sub>2sub>=I<sub>2sub>/I<sub>1sub>       D、N<sub>1sub>/N<sub>2sub>=I<sub>1sub>/I<sub>2sub>
A、N<sub>1sub>=N<sub>2sub>=N<sub>3sub> B、N<sub>1sub>>N<sub>2sub>>N<sub>3sub> C、N<sub>2sub>>N<sub>1sub>>N<sub>3sub> D、N<sub>3sub> =N<sub>1sub>>N<sub>2sub>
A、二氧化碳(CO<sub>2sub>) B、水气(H<sub>2sub>O) C、一氧化碳(CO) D、氮气(N<sub>2sub>)
A、n<sub>1sub>≈n<sub>2sub> B、n<sub>1sub>=n<sub>2sub> C、n<sub>1sub>>>n<sub>2sub> D、n<sub>1sub><<n<sub>2sub>
A、C<sub>nsub>H<sub>2n+2sub>O<sub>2sub> B、C<sub>nsub>H<sub>2nsub>O<sub>2sub> C、C<sub>nsub>H<sub>n+2sub>O<sub>2sub> D、C<sub>nsub>H<sub>2n+1sub>O<sub>2sub>
A、n<sub>1sub>=n<sub>2sub> B、n<sub>1sub>>n<sub>2sub> C、n<sub>1sub><n<sub>2sub> D、无法确定
A、CO、H<sub>2sub>、CH<sub>4sub>、N<sub>2sub> B、Ar<sub>2sub>、CH<sub>4sub>、N<sub>2sub>、H<sub>2sub>、NH<sub>3sub> C、NH<sub>3sub>、CH<sub>4sub>、N<sub>2sub>、CO<sub>2sub> D、H<sub>2sub>O、N<sub>2sub>、H<sub>2sub>、CH<sub>4sub>
A、N<sub>2sub>>N<sub>1sub> B、N<sub>2sub><N<sub>1sub> C、N<sub>2sub>=N<sub>1sub> D、由额定容量来定
A、n=2,L=2,m<sub>1sub>=0,m<sub>2sub>=1/2 B、n=3,L=1,m<sub>1sub>=-1,m<sub>2sub>=-1/2 C、n=1,L=2,m<sub>1sub>=1,m<sub>2sub>=1/2 D、n=1,L=0,m<sub>1sub>=1,m<sub>2sub>=-1/2