【判断题】【消耗次数:1】
全双工的串行通信,数据分别由两根可以在两个不同的站点同时发送和接收的传输线进行传送,通信双方都能在同一时刻进行发送和接收操作。
正确
错误
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相关题目
【单选题】 在同一时刻,通信双方可以同时发送数据的通信方式属于( )
①  半双工通信
②  单工通信
③  数据报
④  全双工通信
【判断题】 在全双工串行通信方式中,只有一端有发送器和接收器。
①  正确
②  错误
【单选题】 对于串行通信,如果数据可以从A发送到B,也可由B发送到A,但同一时间只能进行一个方向的传送,这种通信方式称为( )通信方式。
①  单工
②  半双工
③  全双工
④  并行
【判断题】 串行通信是数据通过一根传输线逐位传送。
①  正确
②  错误
【单选题】 在同一个信道上的同一时刻,能够进行双向数据传送的通信方式是()。
①  单工
②  半双工 
③  全双工 
④  上述三种均不是
【单选题】 在同一个信道上的同一时刻,能够进行双向数据传送的通信方式是( )。   
①  单工
②  半双工
③  全双工
④  上述三种均不是
【判断题】 根据传输线路的不同,串行通信可分为两种方式:单工传输方式和双工传输方式。错
①  正确
②  错误
【判断题】 根据数据传送方向不同,串行通信可分为单工、半双工和全双工三种方式。
①  正确
②  错误
【单选题】 传输介质是通信网络中发送方和接收方之间的( )通路。
①  A物理
②  B逻辑
③  C虚拟
④  D数字
【单选题】 通信信道的每一端可以是发送端,也可以是接受端,信息可由这一端传输到另一端,也可以从那一端传输到这一端,在同一时刻,信息可以每一端进行收发的通信方式为()
①  单工通信
②  半双工
③  全双工
④  模拟
随机题目
【单选题】 The people who ____________ cars work very quickly.
①  astonish
②  assemble
③  afford
④  acquire
【单选题】 Tommy: Mommy, when will we have dinner? I’m starving.Mother: __________ We have to wait for Daddy.
①  OK, honey.
②  Quickly, honey.
③  Soon, honey.
④  All right, honey.
【单选题】 He____________ cold and hunger a great deal.
①  escaped from
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③  kept away from
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【单选题】 Youdonthavetobeinsuchahurry,Iwouldratheryou________onbusinessfirst.
①  wouldgo
②  willgo
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【单选题】 He____________ her out of her money.
①  chatted
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③  cheated
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【单选题】 Now it is illegal (非法的) to kill ______________ for their ivories.
①  tigers
②  lions
③  elephants
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【单选题】 Will you please____________ the experiment youve just made?
①  repeat
②  recover
③  renew
④  reform
【单选题】 It is necessary____________ the book immediately.
①  for him to return
②  that he return
③  his returning
④  to him return
【单选题】 Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Some explode with anger, and scream and shout. But other people keep their anger inside. They can not or will not express it. This is called repressing anger. Many doctors think that repressing anger is more dangerous to a person’s health than expressing it. They say that when a person is angry, the brain gives out the same hormones (荷尔蒙) as that are produced during tense and nervous situations. They speed the heart rate and raise blood pressure, so the person feels excited and ready to act. Repressing these feelings will only make the feelings continue, and this can lead to many medical problems. To prevent these problems, these doctors suggest letting the anger out by expressing it freely. But recently some other doctors question this. They say that people who express anger repeatedly and violently become, in fact, more but not less angry. And this could cause medical problems. However, some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger strongly may be more likely to develop heart diseases, and that those who keep their anger inside may face a greater danger of high blood pressure. Doctors say the solution is to learn how to deal with anger. The first step is to admit that you are angry and to recognize the real cause of the anger, and then to decide if the cause is serious enough to get angry about. If it is, do not express your anger while angry. Wait until your anger has cooled down, and express yourself calmly and reasonably. Doctors also say that a good way to deal with anger is to find humor in the situation that has made you angry, for laughter is much healthier than anger.One correct way to deal with anger is to __________.
①  say nothing no matter how angry you are
②  express anger openly and freely right away
③  express your anger immediately but calmly
④  think about whether its worth getting angry
【单选题】 Anger is a normal emotion that we all feel from time to time. Some people express anger openly in a calm reasonable way. Some explode with anger, and scream and shout. But other people keep their anger inside. They can not or will not express it. This is called repressing anger. Many doctors think that repressing anger is more dangerous to a person’s health than expressing it. They say that when a person is angry, the brain gives out the same hormones (荷尔蒙) as that are produced during tense and nervous situations. They speed the heart rate and raise blood pressure, so the person feels excited and ready to act. Repressing these feelings will only make the feelings continue, and this can lead to many medical problems. To prevent these problems, these doctors suggest letting the anger out by expressing it freely. But recently some other doctors question this. They say that people who express anger repeatedly and violently become, in fact, more but not less angry. And this could cause medical problems. However, some doctors say that both repressing and expressing anger can be dangerous. They believe that those who express anger strongly may be more likely to develop heart diseases, and that those who keep their anger inside may face a greater danger of high blood pressure. Doctors say the solution is to learn how to deal with anger. The first step is to admit that you are angry and to recognize the real cause of the anger, and then to decide if the cause is serious enough to get angry about. If it is, do not express your anger while angry. Wait until your anger has cooled down, and express yourself calmly and reasonably. Doctors also say that a good way to deal with anger is to find humor in the situation that has made you angry, for laughter is much healthier than anger.Some doctors argue that people who often let the anger out would become __________.
①  stronger
②  more violent
③  angrier
④  more dangerous