When the length of the slender compression bar is doubled and other conditions remain unchanged, the critical force becomes 1 / 4 of the original; If the length is halved, the critical force becomes 4 times of the original.
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The compression bar meeting the strength does not necessarily meet the stability; The compression bar meeting the stability does not necessarily meet the strength
A. 对
B. 错
The stability of alloy steel must be better than that of carbon steel
A. 对
B. 错
按照我国《民法典》的规定,未成人的监护人可以由下列人员担任( )
A. 父母
B. 外祖父母
C. 兄弟姐妹
D. 祖父母
张某忠精神病久治不愈,其妻已经过世,现张某的邻居以张某房屋越界为由诉至法院,法院应当指定( )为何某的监护人代理诉讼。
A. 张某的女儿,17岁,在校学生
B. 张父,63岁,工人
C. 张弟,31岁,干部
D. 张原单位的领导