用5条直线将下面的12个棋子连起来,且每条直线都与前一条相连,线条不得重复,应该怎么做? cO4dZ9NmNsxEtvJWxHI+F+wbGDbl9EwzdS0MibNpoux5IMLrzAFE50txcMvT/AiD