数一数,图中一共有多少条线段?'S+A*b9w3{*F0C;R4Z9u6i
'S+A*b9w3{*F0C;R4Z9u6i
算式:提示+T4e'}*F/l'S+A*b9w3{*F0C;R4Z9u6i
答:图中一共有3V5D:Y(t5I6I3{条线段。'S+A*b9w3{*F0C;R4Z9u6i