选择题:由低碳钢组成的细长压杆,经冷作硬化后,其 题目分类:华北水利水电大学材料力学 题目类型:选择题 查看权限:VIP 题目内容: 由低碳钢组成的细长压杆,经冷作硬化后,其 A.稳定性 B.稳定性不变,强度提高; C.稳定性和强度都提高; D.稳定性和强度都不变。 参考答案:
[填空题,5分] We should use the language (purpose). [填空题,5分] We should use the language (purpose). 分类:华北水利水电大学材料力学 题型:选择题 查看答案
[填空题,5分] He earned 1,000 dollars in (add) to his [填空题,5分] He earned 1,000 dollars in (add) to his salary. 分类:华北水利水电大学材料力学 题型:选择题 查看答案