【简答题】【消耗次数:1】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[integrity; conscience; yield; appoint; assure; ensure; demonstrate; clarify; preserve; scarce]2. Feeling that the directions for the exercise were difficult to understand, the students asked the teacher to[填空1]them by explaining them further.
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随机题目
【单选题】 叠加原理用于求解静定结构时,需要满足的条件是( )。
①  位移微小且材料是线弹性的
②  位移是微小的
③  应变是微小的
④  材料是理想弹性的
【单选题】 利用梁的某截面内力影响线可求移动荷载下梁的( )。
①  所有截面的内力
②  指定截面的内力
③  任一截面的内力
④  与该截面相应的内力
【单选题】 在支座移动下不产生支座反力和内力的结构是( )。
①  桁架结构
②  刚架结构
③  静定结构
④  超静定结构
【单选题】 力矩分配法计算得出的结果( )。
①  一定是近似解
②  不是精确解
③  是精确解
④  可能为近似解,也可能是精确解
【单选题】 等截面直杆的转角位移方程是表示单跨超静定梁( )。
①  荷载、杆端位移等外因与杆端力之间的关系
②  荷载与杆端位移之间的关系
③  荷载与杆端力之间的关系
④  杆端力与杆端位移之间的关系
【单选题】 拱轴线为合理拱轴线,其横截面上内力为零的是( )。
①  弯矩
②  扭矩
③  轴力
④  支座反力
【单选题】 图3结构超静定次数为( )。图3
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②  7次
③  8次
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【单选题】 用图乘法求位移的必要条件之一是( )。
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③  所有杆件EI为常数且相同
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【单选题】 图3桁架零杆的个数为( )。图3
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②  4个
③  5个
④  6个
【单选题】 当杆件刚度系数SAB=3i时,杆的B端为( )。
①  自由端
②  固定端
③  铰支承
④  定向支承