【单选题】【消耗次数:1】
下列形体中不属于平面体的是()
正方体
长方体
三棱锥
圆锥体
参考答案:
复制
纠错
相关题目
【单选题】 建筑工程中的()以及建筑形体等大都是长方体的组合体。
① 
② 
【单选题】 下面不属于“四体二用”中“四体”的是( )。
①  象形
②  指事
③  会意
④  假借
【单选题】 侧棱长为10,高为6的正三棱锥的底面积是( )
①  <img class="kfformula" src="20190809/1565327194325168.png" data-latex="60"/>
②  <img class="kfformula" src="20190809/1565327194151271.png" data-latex="48\sqrt {3}"/>
③  <img class="kfformula" src="20190809/1565327194214174.png" data-latex="24"/>
④  <img class="kfformula" src="20190809/1565327194795377.png" data-latex="30"/>
【单选题】 当长方体放置位置为前后两个侧面为正平面,则左右两个侧面为侧平面,则上下底面为( )。
①  铅垂面
②  水平面
③  侧垂面
④  侧平面
【单选题】 当长方体放置位置为上下底面为水平面,前后两个侧面为正平面,则左右两个侧面为( )。
①  侧平面
②  侧垂面
③  水平面
④  铅垂面
【单选题】 当长方体放置位置为上下底面为水平面,左右两个侧面为侧平面,则前后两个侧面为( )。
①  铅垂面
②  侧垂面
③  正平面
④  水平面
【单选题】 以下哪类后牙修复体不属于冠内固位修复体()
①  高嵌体
②  桩核冠
③  嵌体
④  牙合贴面
⑤  嵌体冠
【单选题】 反向,即M1=M2,但二者不共线,则正方体()。
①  平衡
②  不平衡
③  因条件不足,难以判断是否平衡
【单选题】 以下哪项不属于固定修复体()
①  嵌体
② 
③  贴面
④  固定桥
⑤  覆盖义齿
【单选题】 正方体上的六个面各作用有一个平面汇交力系,则该力系独立的平衡方程最多有:
①  4个
②  6个
③  8个
④  12个
随机题目
【判断题】 Said nothing, he left the room angrily.
①  正确
②  错误
【判断题】 The population of beijing is larger than of nanjing.
①  正确
②  错误
【判断题】 We should buy any meat, because there are little left.
①  正确
②  错误
【判断题】 He was very foolish that he didnt pass such an easy exam.
①  正确
②  错误
【判断题】 The students were running on the playground as fast as they can.
①  正确
②  错误
【单选题】 I think you’ve got to the point ___ a change is needed, otherwise you’ll fail.
①  when
②  that
③  where
④  which
【单选题】 They _ on the programme for almost one week before I joined them, and now we on it as no good results have come out so far.
①  had been working; are still working
②  had worked; were still working
③  have worked; were still working
④  have worked; are still working
【单选题】 Many people who had seen the film were afraid to go to the forest when they remembered the scenes ___ people were eaten by the tiger.
①  that
②  by which
③  which
④  in which
【单选题】 A candidate for the democratic presidential nomination ______ at this moment.
①  is interviewing
②  being interviewed D. Interviewing
③  is being interviewed
④  Interviewing
【单选题】 ___ is often the case, we have worked out the production plan.
①  Which
②  When
③  What
④  As