钢结构安装过程中,上节钢柱安装与校正时,位移调整应使钢柱定位轴线从______引上;
A. 地面控制轴线
B. 下层柱轴线
C. 一层柱轴线
D. 每隔二层轴线
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以下不属于焊接工艺参数的有:
A. 电源极性
B. 焊机型号
C. 焊接层次
D. 运条方式
以下不属于钢材边缘加工方式的有:
A. 修边
B. 刨边
C. 铣边
D. 铲边
Choose the best answerMy brother's plans are very______, he wants to master English, French and Spanish before he is sixteen.
A. arbitrary
B. aggressive
C. ambitious
D. abundant
Louis Herman, at the University of Hawaii, has a series of new experiments in which some animals have learned to understand sentence.
A. installed
B. equipped
C. devised
D. formatted