【判断题】【消耗次数:1】
电压三角形是相量图,阻抗三角形也是相量图。
正确
错误
参考答案:
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相关题目
【判断题】 三角形是一个欧拉图。
①  正确
②  错误
【单选题】 星型——三角形减压电路中,星型接法起动电压为三角形接法电压的()。
①  1/√3
②  1/√2
③  1/3
④  1/2
【判断题】 对称三角形连接的三相电路中,线电压等于相电压。
①  正确
②  错误
【简答题】 请简述三相负载的三角形连接含义。
【单选题】 用于联接的螺纹牙型为三角形,这是因为三角形螺纹()。
①  牙根强度高,自锁性能好
②  传动效率高
③  防震性能好
④  自锁性能差
【单选题】 用于联接的螺纹牙型为三角形,这是因为三角形螺纹______。
①  牙根强度高,自锁性能好
②  传动效率高
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【判断题】 三角形是一个哈密尔顿图。
①  正确
②  错误
【单选题】 ( )的投影图是等腰三角形。
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②  圆球体
③  圆锥台
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【单选题】 学习“直角三角形是一种特殊的三角形”,这种学习属于( )。
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②  符号学习
③  概念学习
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【单选题】 学习“直角三角形是一种特殊的三角形”,这种学习属于( )
①  词汇学习
②  符号学习
③  概念学习
④  命题学习
随机题目
【单选题】 19. He tried to _____ from his memory what he knew of his former neighbor..
①  think of
②  remember
③  summon
④  gave way
【单选题】 14. Mary is _______ to what others think of her.
①  sensitive
②  sensational
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【单选题】 11 ______, they had no chance of winning.
①  brave as they fought
②  bravely as they fought
③  If they fought bravely
④  Since they fought bravely
【单选题】 15. She suffered great mental_____ after her husband died, and as a result she became mad.
①  anger
②  . discomfort
③  unhappiness
④  anguish
【单选题】 18. Strong feelings _____ within him.
①  opened
②  . welled up
③  rose up
④  confronted
【单选题】 13. The supervisor appreciates ______ so hard in the office.
①  for your working
②  your working
③  you to work
④  for you to work
【单选题】 10. ______, he was unable to make much progress.
①  Hard as he tried
②  Though hard as he tried
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【单选题】 6. She felt herself ______ by the wind.
①  lift
②  lifting
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【单选题】 9.She does not_____ that she owes the money, but she just wouldn’t like to return it.
①  argue
②  . dispute
③  think
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【单选题】 9. By 2008, Beijing ______ its total discharge of pollutants.
①  will reduce
②  will have reduced
③  reduces
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