问题
单项选择题
Which of the following statements is NOT true regarding arrow digramming method ？（）
A．Schedule activities are represented by arrows.
B．The length of the arrow represents the expected duration of the activity.
C．The tail of the arrow represents the start of the activity.
D．The head of the arrow represents the finish of the activity.
答案
参考答案：B
解析：
下列关于ADM的说法哪个是不正确的
A) 进度活动通过箭线表现。 B) 箭线的长度体现活动的预期历时。
C) 箭线的尾巴代表活动的开始。 D) 箭线的头部代表活动的结束。
ADM又叫箭线绘图法，用箭线表示活动，用节点表示逻辑关系。