【判断题】
到祖国最需要的地方去是大学生成才的一条重要途径。
A. 对
B. 错
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答案
A
解析
暂无解析
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【单选题】
压杆的柔度集中地反映了压杆的___对临界应力的影响
A. 长度、约束条件、截面形状和尺寸
B. 材料、长度和约束条件
C. 材料、约束条件、截面形状和尺寸
D. 材料、长度、截面尺寸和形状
【单选题】
8下列说法中错误的是___
A. 杆件变形的基本形式有四种：轴向拉伸（或压缩）、剪切、扭转和弯曲；
B. 当杆件产生轴向拉（压）变形时，横截面沿杆件轴线产生平移；
C. 当圆截面杆件产生扭转变形时，横截面绕杆件轴线转动；
D. 当杆件产生弯曲变形时，横截面绕中性轴弯曲。
【单选题】
当矩形截面梁产生剪切弯曲时，其横截面上离中性轴最远处___
A. 正应力和剪应力均最大
B. 正应力和剪应力均为零
C. 正应力最大，剪应力为零
D. 正应力为零，剪应力最大
【单选题】
光滑接触面对物体的约束反力，作用在接触面处，其合力的方向___
A. 沿法线方向指向该物体，为压力
B. 沿法线方向指向该物体，为拉力
C. 沿法线方向背离该物体，为压力
D. 沿法线方向背离该物体，为拉力
【单选题】
下列关于力偶的说法错误的是___。
A. 力偶不能用一个力来等效
B. 力偶能用一个力来平衡
C. 力偶对其作用平面内任一点的力矩，恒等于其力偶矩
D. 力偶在任意坐标轴上的投影均等于零
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【单选题】
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A. 收单业务员
B. 客户经理岗
C. 信息管理岗
D. 风险专管员
