【单选题】【消耗次数:1】
为避免“空翻”现象,应采用( )方式的触发器。
主从触发
边沿触发
电平触发
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相关题目
【判断题】 电平触发方式的触发器抗干扰能力比边沿触发方式的触发器抗干扰能力强
①  正确
②  错误
【判断题】 凡采用电位触发方式的触发器,都存在“空翻”现象。
①  正确
②  错误
【单选题】 为防止“空翻”,应采用( )结构的触发器。
①  TTL
②  MOS
③  主从或维持阻塞
【单选题】 按触发器触发方式的不同,双稳态触发器可分为( )
①  高电平触发和低电平触发
②  上升沿触发和下降沿触发
③  电平触发或边沿触发
④  输入触发或时钟触发
【判断题】 主从JK触发器电路中,主触发器合从触发器输出状态的翻转是同时进行的。
①  正确
②  错误
【判断题】 主从型JK触发器的从触发器开启时刻在CP下降沿到来时。
①  正确
②  错误
【判断题】 select操作不会触发任何触发器。
①  正确
②  错误
【判断题】 仅具有保持和翻转功能的触发器是RS触发器。
①  正确
②  错误
【判断题】 主从RS触发器的约束条件是RS=0;
①  正确
②  错误
【多选题】 下列触发器中没有不定状态的有。
①  RS触发器
②  D触发器
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【单选题】 He left in such a hurry that I _______ had time to thank him.
①  almost
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【单选题】 I’m sorry to break your glasses.____________
①  It doesn’t matter.
②  What a pity! I’m sorry.
③  The same to you.
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【判断题】 判断线上的内容是否正确:—Can you tell us your __recipe___ for happiness and a long life? —Living every day to the full, definitely.
①  正确
②  错误
【单选题】 Could you be so kind as to turn down that rock “n” roll? I am preparing for tomorrow’s exam.____________
①  It’s none of your business.
②  What are you doing?
③  Sure. Sorry to disturb you.
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【单选题】 May I use your bike for a moment?___________
①  It’s well.
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【单选题】 We’ve _______ paper and ink. Ask Mr. Howard to lend us some.
①  run away with
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【单选题】 How do I get to the cinema?____________
①  Its very far.
②  Yes, there is a cinema near here.
③  Its well known.
④  Go down this street and turn left.
【单选题】 I doubt whether the Chinese Football Team can win the game this time.____________
①  That’s true.
②  It’s hard to say.
③  I like the team.
④  I don’t believe it.