A、IOC<sub>0sub> B、IOC<sub>1sub> C、IOS<sub>0sub> D、IOS<sub>1sub>
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、TE<sub>1sub>与E<sub>1sub> B、T<sub>Ssub>与E<sub>1sub> C、T<sub>Tsub>与E<sub>1sub> D、T<sub>Csub>与E<sub>1sub>
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、T<sub>E1sub>与E<sub>1sub> B、T<sub>Ssub>与E<sub>1sub> C、T<sub>Tsub>与E<sub>1sub> D、T<sub>Csub>与E<sub>1sub>
A、曲线过多边形的端点P<sub>1sub>和P<sub>nsub> B、曲线与多边形的端点直线P<sub>1sub>P<sub>2sub>和P<sub>nsub>P<sub>n-1sub>相切 C、曲线过多边形的端点P<sub>1sub>和P<sub>nsub>并与端点直线P<sub>1sub>P<sub>2sub>和P<sub>nsub>P<sub>n-1sub>相切 D、曲线无约束,仅与控制点有关
A、B<sub>1sub><B<sub>2sub>,Φ<sub>1sub><Φ<sub>2sub> B、B<sub>1sub>=B<sub>2sub>,Φ<sub>1sub><Φ<sub>2sub> C、B<sub>1sub>=B<sub>2sub>,Φ<sub>1sub>>Φ<sub>2sub> D、B<sub>1sub>>B<sub>2sub>,Φ<sub>1sub>>Φ<sub>2sub>
A、E<sub>1sub>〈E<sub>2sub>,A<sub>1sub>〈A<sub>2sub> B、E<sub>1sub>〈E<sub>2sub>,A<sub>1sub>〉A<sub>2sub> C、E<sub>1sub>〉E<sub>2sub>,A<sub>1sub>〈A<sub>2sub> D、E<sub>1sub>〉E<sub>2sub>,A<sub>1sub>〉A<sub>2sub>