【简答题】如图所示,该桥是一座桥面板为铰接的T形截面简支梁桥,桥面铺装厚度为10cm,桥面板端部厚8cm,根部厚14cm,净跨径为142cm,试计算桥面板在公路--I级汽车荷载作用下每米宽板条上的活载弯矩及剪力?
【多选题】温度为0℃或负温,含有冰且与土颗粒呈胶结状态的土称为冻土。根据冻土冻结延续时间可分为( )和( )两大类。
【单选题】The driver was still ____ when the ambulance arrived at the scene of the accident.
【简答题】The driver was still ______ when the ambulance arrived at the scene of the accident.()A. conscious
【简答题】The driver was still when the ambulance arrived at the scene of the accident.
【单选题】托幼园所卫生保健工作的根本任务是在集居的条件下保障和促进婴幼儿的
【简答题】“ 百钱百鸡 ” 问题。百钱买百鸡,鸡翁一值钱三,鸡母一值钱二,鸡雏三值钱一,问鸡翁、鸡母、鸡雏各几何?