【判断题】【消耗次数:1】
约束力的方向总是与约束所能限制的运动方向相反。 ()
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错误
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相关题目
【判断题】 约束反力的方向总是与所能限制的物体运动趋势方向相反。
①  正确
②  错误
【判断题】 约束反力的方向总是和该约束所能阻碍物体的运动方向相同。
①  正确
②  错误
【判断题】 典型生产设备的机械特性中,反抗转矩方向总是与运动方向相反。
①  正确
②  错误
【单选题】 限制物体运动的物体称为约束物体,简称约束。
①  正确
②  错误
【单选题】 ( )是指假设其中一个约束面与物体接触,绘制约束力,不能同时假设两个约束面与物体同时接触。
①  约束
②  单面约束
③  双面约束
④  自由
【判断题】 《中国药典》法律约束力范围全省
①  正确
②  错误
【单选题】 B处的法向约束力FNA与FNB的关系为()。
①  FNA=FNB
②  FNA>FNB
③  FNA<FNB
【单选题】 根据社会约束力的强弱,以下排序中正确的是
①  法律、道德、风俗习惯、宗教
②  法律、宗教、风俗习惯、道德
③  风俗习惯、道德、宗教、法律
④  风俗习惯、宗教、道德、法律
【判断题】 约束是阻碍物体运动的限制物。
①  正确
②  错误
【判断题】 无效的收养行为自始没有法律约束力。
①  正确
②  错误
随机题目
【单选题】 As it turned out to be a small house party, we___ so formally.
①  need not have dressed up
②  must not have dressed up
③  did not need to dress up
④  must not dress up
【单选题】 We have been hearing ______ accounts of your work.
①  favoured
②  favourable
③  favorite
④  favouring
【单选题】 The train______she was traveling was five minutes late.
①  that
②  which
③  on that
④  on which
【单选题】 The old men who gave away lots of money ______ highly of at yesterday’s meeting.
①  spoke
②  spoken
③  was spoken
④  were spoken
【单选题】 Once a picture is proved to be a forgery, it becomes quite ___.
①  invaluable
②  priceless
③  worthless
④  valuable
【单选题】 Is that book ______ he borrowed on Friday?
①  that
②  which
③  the one
④  who
【单选题】 Tom is one of the people who ______ they are now.
①  from
②  like
③  with
④  as
【单选题】 I’ll never forget the days ______ we spent together in the country.
①  which
②  on which
③  when
④  on that
【单选题】 The book ______ you want is on the desk.Which of the following isn’t right?
①  that
②  which
③  /
④  it
【单选题】 It is in 1960 ______ Chinese first put out flag on Mount Qomolangma.
①  when
②  that
③  which
④  in which