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                            ![](https://box.kancloud.cn/6b7379e7f64d734181cea9969e36934a_2556x1212.png)
# 分組
![](https://box.kancloud.cn/db3b8621c4215bd978fb9e99d464c8af_1476x330.png)
# 閉包分組
![](https://box.kancloud.cn/a6ce47ca40ca2e978ff1d36e6001d6f8_1746x494.png)
# 虛擬分組
![](https://box.kancloud.cn/1989f671a078802263a0d4c81b94defc_1334x240.png)
# 虛擬分組最簡單化
![](https://box.kancloud.cn/2aa0b92707488da2610082550bdcbedb_1130x608.png)

                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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