(0101)<sub>2</sub>与(0111)<sub>2</sub>的和为()。
A、(1011)2
B、(1100)2
C、(1000)2
D、(1101)2
A、(1011)2
B、(1100)2
C、(1000)2
D、(1101)2
A、V<sub>1sub>与V<sub>4sub>导通,V<sub>2sub>与V<sub>3sub>关断 B、V<sub>1sub>常通,V<sub>2sub>常断,V<sub>3sub>与V<sub>4sub>交替通断 C、V<sub>1sub>与V<sub>4sub>关断,V<sub>2sub>与V<sub>3sub>导通 D、V<sub>1sub>常断,V<sub>2sub>常通,V<sub>3sub>与V<sub>4sub>交替通断
A、V<sub>1sub>与V<sub>4sub>导通,V<sub>2sub>与V<sub>3sub>关断 B、V<sub>1sub>常通,V<sub>2sub>常断,V<sub>3sub>与V<sub>4sub>交替通断 C、V<sub>1sub>与V<sub>4sub>关断,V<sub>2sub>与V<sub>3sub>导通 D、V<sub>1sub>常断,V<sub>2sub>常通,V<sub>3sub>与V<sub>4sub>交替通断
A、F<sub>2sub>>Cl<sub>2sub>>Br<sub>2sub>>I<sub>2sub> B、Br<sub>2sub>>I<sub>2sub>>F<sub>2sub>>Cl<sub>2sub> C、Cl<sub>2sub>>F<sub>2sub>>I<sub>2sub>>Br<sub>2sub> D、I<sub>2sub>>Br<sub>2sub>>Cl<sub>2sub>>F<sub>2sub>
A、耗氧量与CO<sub>2sub>产生量比值O<sub>2sub>/CO<sub>2sub> B、CO<sub>2sub>产生量与耗氧量的比值CO<sub>2sub>/O<sub>2sub>
A、Cl<sub>2sub>〉F<sub>2sub>〉Br<sub>2sub>〉I<sub>2sub> B、F<sub>2sub>〉Cl<sub>2sub>〉Br<sub>2sub>〉I<sub>2sub> C、I<sub>2sub>〉Br<sub>2sub>〉Cl<sub>2sub>〉F<sub>2sub> D、Br<sub>2sub>〉I<sub>2sub>〉F<sub>2sub>〉Cl<sub>2sub>
A、R<sub>1sub>与R<sub>3sub>串联后与R<sub>2sub>并联 B、R<sub>1sub>与R<sub>3sub>并联后与R<sub>2sub>串联 C、R<sub>1sub>与R<sub>2sub>并联后与R<sub>3sub>串联 D、R<sub>1sub>与R<sub>2sub>串联后与R<sub>3sub>并联
A、HCl与CuSO<sub>4sub> B、HCl与CdCl<sub>2sub> C、CuCl<sub>2sub>与CuSO<sub>4sub> D、H<sub>2sub>SO<sub>4sub>与CdCl<sub>2sub>