皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
其他条件不变,若接触力增大一倍,接触应力增大多少?
A.
1.414倍
B.
2倍
C.
1倍
D.
0.414倍
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】在承受横向载荷或旋转力矩的普通紧螺栓组联接中,螺栓杆 作用。
A.
受切应力
B.
受拉应力
C.
受扭转切应力和拉应力
D.
既可能只受切应力,也可能只受拉应力
【单选题】在下述论述中,正确的是 1只有一个结点的二叉树的度为 0 ;2二叉树的度为 2 ;3二叉树的左右子树可任意交换; 4深度为 K 的顺序二叉树的结点个数小于或等于深度相同的满二叉树。
A.
①②③
B.
②③④
C.
②④
D.
①④
【简答题】Complete the following sentences, using the words given in brackets: 1) I that it was a mistake to let him go. (can ’ t help) 2) After drinking heavily at the New Year ’ s party, the next morning with...
【简答题】根据所听句子,选择正确答语。 (     ) 1. A. Basketball (     ) 2. A. In June (     ) 3. A. Listen to me (     ) 4. A. Because it’s interesting. (     ) 5. A. On the playground (     ) 6. A. Yes, I do (     ) 7. A. S...
【单选题】下序结论中,正确的是( )。 (1)只有一个结点的二叉树的度为0;(2)二叉树的度为2;(3)二叉树的左右子树可任意交换; (4)深度为K的完全二叉树的结点个数小于或等于深度相同的满二叉树。
A.
(1)(2)(3)
B.
(2)(3)(4)
C.
(2)(4)
D.
(1)(4)
【简答题】Trudy, an American girl, tried swimming across the English Channel. That was August 6, 1962. Her father had ___1___ her two things. One was not to pull her out of the water ___2___ she asked. The othe...
【单选题】在承受横向载荷或旋转力矩的普通紧螺栓组联接中,螺栓杆 作用。
A.
受切应力
B.
受拉应力
C.
受扭转切应力和拉应力
【单选题】George had difficulty in swimming across the lake, but he finally succeeded his 4th attempt.
A.
in
B.
on
C.
at
D.
by
【判断题】假设某汽车制造厂去年生产一辆君威3.0所需时间为半年,今年生产同一型号车辆所需实际缩减为5个月,由于劳动时间减少造成的该种车辆成本降低属于经济性功能贬值。
A.
正确
B.
错误
【简答题】用 over, between, along, in front of, behind, 或 across 等介词或介词短语填空 1. A lot of birds are flying ___ ____ the river. 2. The teacher is standing _____ _______ the blackboard. 3. I am running __ _____ the...
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题