题型:选择题 —Could I use your computer, Dad? —Sorry, you _____. I'm going to work on it.[ ]A. wouldn't B. can't C. needn't D. don't have to
题型:单项选择题 案例分析题 某2层钢筋混凝土办公楼浴室的简支楼面梁,安全等级为二级,从属面积为13.5m2,计算跨度为6.0m,梁上作用恒荷载标准值gk=14.0kN/m(含梁自重),按等效均布荷载计算的梁上活荷载标准值pk=4.5kN/m假定,该梁两端均与框架柱刚接,当进行截面抗震验算时,试问,该梁在重力荷载代表值作用下按简支梁计算的梁端剪力设计值V(kN)与下列何项数值最为接近()。提示:假定重力荷载对该梁抗震不利。A.40B.50C.60D.65 查看答案