【单选题】【消耗次数:1】
纯金属的热导率随温度的升高而降低。( )
正确
错误
参考答案:
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相关题目
【判断题】 纯金属材料的导热系数随温度的升高而降低。
①  正确
②  错误
【判断题】 工程上常用的空气的导热系数随温度的升高而降低。
①  正确
②  错误
【多选题】 阻值随着温度升高而降低的是( )。
①  附加电阻
②  进气温度传感器
③  冷却液温度传感器
④  排气温度传感器
【判断题】 二极管V4的正向压降随温度的升高而降低,对功放管还能起到一定的温度补偿作用。
①  正确
②  错误
【单选题】 随温度的升高,则 。
①  气体、液体的粘度均减小
②  气体、液体的粘度均增大
③  气体粘度增大,液体粘度减小
④  气体粘度减小,液体粘度增大
【判断题】 钢材的力学性能随厚度的增加而降低。()
①  正确
②  错误
【单选题】 负温度系数的热敏电阻其阻值随温度的升高而( )。
①  升高
②  降低
③  不受影响
④  先高后低
【单选题】 负温度系数的热敏电阻其阻值随温度的升高而
①  升高
②  降低
③  不受影响
④  先高后低
【单选题】 负温度系数的热敏电阻其阻值随温度的升高而( )
①  升高
②  降低
③  不受影响
④  先高后低
【单选题】 对纯金属而言,下列说法哪个是错误的?()
①  不会在恒温下结晶
②  不会发生相变
③  都能进行形变强化
④  都能进行时效强化
随机题目
【单选题】 I thought I knew the way, but ____I got lost.
①  somehow
②  somewhat
③  anyhow
④  anyway
【单选题】 The ____ of the trees grew longer as the afternoon went on. ?
①  images ?
②  pictures ?
③  photos ?
④  shadows ?
【单选题】 The British people and the American people not only speak the same language but ____ a lot of special customs as well.
①  share
②  spare
③  hold
④  carry
【单选题】 “Are you ready for your paper?” “Not yet. I need___ to read through it.”
①  other three minutes
②  another three minutes
③  three other minutes
④  more three minutes
【单选题】 ____ to speak when the audience interrupted him.
①  Hardly had he begun
②  No sooner had he begun
③  Not until began
④  Scarcely did he begin
【单选题】 13. When I was a teenager, my bedroom was always ____; as an adult, though, my room is always neat..
①  tidy
②  orderly
③  mess
④  untidy
【单选题】 Women have to be more ____ than men if they want to get anywhere in the business world.
①  difficult
②  ambitious
③  traditional
④  conservative
【单选题】 24. The kind-hearted woman always tries to help others, but recently she has been ____kind and generous.
①  chiefly
②  specially
③  principally
④  especially
【单选题】 When the passenger woke up, he found himself ____in a hospital ward.
①  lie
②  lay
③  lying
④  lain
【单选题】 Never get off the bus ____it has stopped.
①  if
②  as soon as
③  until
④  or