以下关于单代号网络图的说法错误的是()
A.
单代号网络图根据逻辑关系从左至右依次绘制
B.
单代号网络图一般可以有两个终点节点
C.
单代号网络图一般只可以有一个终点节点
D.
单代号网络图只可以有一个起点节点
正确答案是B
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