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问题 多项选择题

绘制双代号网络图的基本规则描述错误的是（）

A.在一个网络图中只允许有一个起点节点和一个终点节点

B.网络图中不允许出现循环线路

C.网络图中允许出现双向箭头或无箭头的“连线”

D.可使用多种处理箭线交叉的方法

答案

参考答案：A, B, D

单项选择题

Passage Three


Effective listening is more than simply avoiding the bad habit of interrupting others while they are speaking or finishing their sentences. It’s being content to listen to the entire, thought of someone rather than waiting impatiently for your chance to respond. We often treat communication as if it were a race. It’s almost like our goal to have no time gaps between the conclusion of the sentence of the person we are speaking with and the beginning of our own. My wife and I were recently at a cafe having lunch, eavesdropping(偷听) on the conversations around us. It seemed that no one was really listening to one another, instead they were taking turns not listening to one another.
Slowing down your responses and becoming a better listener aids you in becoming a more peaceful person, it takes stress from you. It is very stressful to be sitting at the edge of your seat trying to guess what the person in front of you (or on the telephone) is going to say so that you can fire back your response. But as you wait for the person you are communicating with to finish, as you simply listen more intently to what is being said, you’ll feel more relaxed, and so will the people you are talking to. Not only will becoming a better listener make you a more patient person, it will also enhance the quality of your relationships. Everyone loves to talk to someone who truly listens to what they are saying.

Which of the following has the similar meaning to the underlined word" enhance" in the last paragraph

A．improve

B．reduce

C．form

D．p
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问答题 简答题

“全国铁路通用乘车证”适用于哪些人使用，乘车有何规定？
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