【单选题】【消耗次数:1】
开环频域性能指标中的相角裕度<imgwidth="13"height="18"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image008.png">对应时域性能指标()。
超调<imgwidth="30"height="20"src="../uploadfiles/word/zdkzll002.files/image009.png">
稳态误差<imgwidth="29"height="24"src="../uploadfiles/word/zdkzll002.files/image010.png">
调整时间<imgwidth="17"height="24"src="../uploadfiles/word/zdkzll002.files/image011.png">
峰值时间<imgwidth="24"height="26"src="../uploadfiles/word/zdkzll002.files/image012.png">
参考答案:
复制
纠错
相关题目
【单选题】 在采访中,记者既要&quot;身入&quot;,又要&quot;心入&quot;。&quot;心入&quot;,就是要有强烈的社会责任感, 要对客观事物进行由表及里的分析,还要().
①  A.广泛地接触群众
②  B.多方面地挖掘材料
③  C.细心地掂量各种材料的价值
④  D.细心地掂量各种材料的价值
【多选题】 我国上市使用的轮状病毒疫苗有<span contenteditable="false" class="xe-blanknumber" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;1&quot;}">1</span>、<span contenteditable="false" class="xe-blanknumber" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;2&quot;}">2</span>、<span contenteditable="false" class="xe-blanknumber" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;3&quot;}">3</span>。
①  口服五价重配轮状病毒减毒活疫苗
②  口服轮状病毒疫苗(LLR)口服
③  口服三价重配轮状病毒减毒活疫苗
【单选题】 系统在<imgwidth="56"height="24"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image003.png">作用下的稳态误差<imgwidth="52"height="24"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image004.png">,说明()
①  型别<imgwidth="38"height="20"src="../uploadfiles/word/zdkzll002.files/image005.png">; 
②  系统不稳定;
③  输入幅值过大;
④  闭环传递函数中有一个积分环节。
【多选题】 Whatdoestheword&quot;steal&quot;(thelastpara.)mean?<br/>
【多选题】 已上市的霍乱疫苗包括两种,分别为<span contenteditable="false" class="xe-blanknumber" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;1&quot;}">1</span>、<span contenteditable="false" class="xe-blanknumber" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;2&quot;}">2</span>。
①  单价灭活全菌-重组霍乱肠毒素B亚单位疫苗
②  双价灭活疫苗
【判断题】 新闻用事实说话,即写出事实并把事实说清楚,是&quot;根据事实来描写事实&quot;而不是&quot;根据希望来描写事实&quot;().
①  正确
②  错误
【单选题】 系统特征方程为<imgwidth="184"height="24"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image001.png">,则系统()
①  稳定;
②  单位阶跃响应曲线为单调指数上升;
③  临界稳定;
④  右半平面闭环极点数<imgwidth="42"height="18"src="../uploadfiles/word/zdkzll002.files/image002.png">。
【多选题】 <p>《预防和控制肺炎与腹泻病的全球综合行动计划(GAPPD)》中,5岁以下儿童腹泻防控目标为,到2025年,在全球5岁以下儿童中,重症腹泻发病率比2010年降低<span class="xe-blanknumber" contenteditable="false" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;1&quot;}">1</span>,腹泻死亡率减少到<span class="xe-blanknumber" contenteditable="false" data-name="blanknumber" data-content="{&quot;content&quot;:&quot;2&quot;}">2</span>。</p>
①  75%
②  1‰
【单选题】 已知单位反馈系统的开环传递函数为<imgwidth="159"height="44"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image048.png">,当输入信号是<imgwidth="104"height="24"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image049.png">时,系统的稳态误差是()
①  0;
②  ∞;
③  10;
④  20
【单选题】 已知单位反馈系统的开环传递函数为<imgwidth="159"height="44"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image061.png">,当输入信号是<imgwidth="104"height="24"src="http://wljy.whut.edu.cn//uploadfiles/word/zdkzll002.files/image062.png">时,系统的稳态误差是()
①  0
② 
③  10
④  20
随机题目
【单选题】 In order to improve English, ______.
①  Jane’s father bought her a lot of tapes
②  Jane bought a lot of tapes for herself
③  a lot of tapes were bought for her by Jane’s father
④  a lot of tapes were bought by Jane
【单选题】 I ______ to stay here if I can.
①  have been meaning
②  mean
③  am meaning
④  have meant
【单选题】 They had only _________ in that house for three weeks when fire destroyed it.
①  to live
②  living
③  lived
④  been lived
【单选题】 In the USA, he made a lot of friends ______ English well so he could make himself ______.
①  learn, understand
②  to learn, understood
③  learning, understood
④  learn, understanding
【单选题】 If you want to break the law, make sure that you don’t ______.
①  catch
②  be caught
③  caught
④  get caught
【单选题】 Hundreds of jobs ______ if the factory closes down.
①  will be lost
②  are lost
③  will lose
④  lose
【单选题】 Mary looks unhappy because she has ______ by her classmates.
①  laughed at
②  been laughed
③  laughed
④  been laughed at
【单选题】 Cleaning women in big cities usually get ______ by the hour.
①  paying
②  pay
③  paid
④  to pay
【单选题】 He the job well,but he so careless.
①  could do,was
②  had done,had been
③  could have done,was
④  hadnˊt done,had been
【单选题】 Li Ling acted that way as though he a foreigner.
①  should be
②  were
③  is
④  had been