【判断题】【消耗次数:1】
土的渗透性的达西定律中的渗透速度就是渗流在孔隙中运动的实际流速。()
正确
错误
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相关题目
【判断题】 土的渗透性的达西定律中的渗透速度就是渗流在孔隙中运动的实际流速。()
①  正确
②  错误
【判断题】 达西定律适用于层流状态,对密实黏土渗透流速与水力坡降关系可简化为过原点的直线。()
①  正确
②  错误
【判断题】 达西定律适用于层流状态,对密实黏土渗透流速与水力坡降关系可简化为过原点的直线。()
①  正确
②  错误
【单选题】 渗透性学习要求()。
①  教师多进行观察学习
②  教师要在专业发展中处于自觉状态
③  教师要多去实践中学习
④  教师要多深入学生群体
【单选题】 渗透性学习要求()。
①  教师多进行观察学习
②  教师要在专业发展中处于自觉状态
③  教师要多去实践中学习
④  教师要多深入学生群体
【单选题】 达西定律中的面积A是()。
①  试样的总截面积
②  试样截面的土颗粒面积
③  试样截面的孔隙面积
④  测压管截面积
【多选题】 以下哪些属于渗透性利尿()
①  A.大量饮水使尿量增加
②  B.糖尿病患者的多尿
③  C.静滴20%的甘纯露
④  D.静滴生理盐水
【单选题】 ⑤可在水头差作用下形成渗流,并对土粒产生渗透力,使土体产生渗透变形。其中正确的组合是()
①  ①③④
②  ①②③④⑤
③  ①②③⑤
④  ①②④⑤
【单选题】 下列关于达西定律说法有误的一项是()
①  达西渗透定律的适用范围主要与渗透水流在土中的流动状态有关
②  达西渗透定律表明在稳定层流状态下,渗透流量速度与土的渗透性能系数无关
③  达西定律的基本关系是采用宏观虚拟的基本假定建立的
④  达西渗透定律属于层流状态者适用,紊流状态不适用
【单选题】 在实际工程中,用来判断渗透破坏可能性的指标是()。
①  渗透速度
②  水头高度
③  渗透路径
④  临界水力梯度
随机题目
【单选题】 A: Is there a bank near here? B: [填空].
①  Its very far
②  Its here
③  Yes, there is a big one
④  Its very crowded
【单选题】 A: David injured his leg playing football yesterday. B: Really? [填空]
①  Who did that?
②  hats wrong with him
③  How did that happen
④  Why was he so careless?
【单选题】 A: How are you doing?B: [填空].
①  Good night
②  Not so bad. And you?
③  I m pleased.
④  How do you do?
【单选题】 A: Would you like me to feed your cats while youre on your holiday? B: [填空].
①  I appreciate it, but Ive already fed them
②  No problem, I was more than glad to do it
③  Thanks for offering your help, but my sisters going to do it
④  Certainly, feeding cats is my favorite pastime
【单选题】 A: I missed yesterdays basketball final. B: [填空]
①  What a pity!
②  Its a good idea.
③  Remember to bring it next time.
④  Im glad to hear that.
【单选题】 A: May I use your dictionary for a moment? B: [填空].
①  Its well
②  It doesnt matter
③  By all means
④  Here you are
【单选题】 A: Are you feeling better today? B: [填空].
①  There must be something wrong
②  Just have a good rest
③  Yes, thank you, doctor. But I still dont feel good
④  Dont worry about me
【单选题】 A: How about going to dinner at the Mexican restaurant tonight? B: [填空].
①  I like Mexican food
②  Id like to, but I already have plans for tonight
③  Forget it
④  I dont know
【单选题】 A: Bob, [填空]? B: Thats my friend! And beside him, his partner.
①  what is the person over there
②  whos talking over there
③  what are they doing
④  which is that
【单选题】 A: She is running a fever, but now it is under control. B: [填空].
①  She is running fast
②  Her mother does not run
③  She is running away from home
④  I will go and see her after work