【单选题】以下关于一个点的应力状态的描述正确的是________。
D.
只知道点的位置,无法具体描述该点的总应力、正应力与切应力。
【单选题】In 1965, a new Voting Rights Bill became law, ________all black people had the right to vote from then on.
【单选题】The law of black-body radiation was given in 1900 by ( )?
【单选题】观察下面的图片,1处所指的构造名称是( )。【图片】
【判断题】“牢记汉语语法的相关概念和语法公式并会套用”是学习语法的关键方法?( )
【单选题】钢结构焊接变形采用火焰矫正方法描述错误的是()。
B.
矫正处烤火面积在一个截面上不得过大,要多选几个截面
【单选题】The law that segregated the black people from the 1860s until 1960s was _____.
【简答题】词汇题,根据词意和首字母写出完整单词 热情(名词):e 1 热情(形容词):e 2
【单选题】Mr. Black, _____ born in Kentucky, lived and practiced law in Missouri.