单项选择题
图G的邻接矩阵为,则图G是可平面的。A.错误 B.正确
不定项选择图G的邻接矩阵为,则图G是可平面的。
四大菜系指黄河下游的鲁菜、长江上游的川菜、长江下游的徽菜、珠江流域的粤菜。( ) ...
判断题四大菜系指黄河下游的鲁菜、长江上游的川菜、长江下游的徽菜、珠江流域的粤菜。( ) 正确 错误
Fill in the blank with the most appropriate choice. "A ...
单项选择题Fill in the blank with the most appropriate choice. "A ___________ of the two computers showed that Model B has a better quality." A、comparison B、comparision C、comparition D、comparative