【简答题】Put in appropriate prepositions or adverbs: 1. All these possibilities are consideration. 2. She feels ill ease with so many strangers watching. 3. I was my wit’s end. I really didn’t know what to do....
【简答题】已知矩形截面偏心受压柱,截面尺寸b×h=300mm×500mm,计算长度l 0 =5.2m。承受轴向压力设计值N=1700kN,柱端弯矩设计值M 1 =M 2 =150kN·m。混凝土强度等级为C30,钢筋级别为HRB400级,初步设计时取a s =a' s =40mm,混凝土保护层厚度为20mm。试计算纵向钢筋面积A s 和A' s 。