【单选题】下列关于分部分项工程量清单计量单位的描述正确的是( )。
C.
清单定额的计量单位均为基本计量单位,不得使用扩大单位
D.
清单定额的计量单位可以用基本计量单位,也可以使用扩大单位
【多选题】下列对预算定额计量单位确定原则说法正确的有( )
A.
预算定额的计量单位一般是按工序或施工过程来定
B.
预算定额的计量单位主要是根据分项工程或结构构件的形体特征变化确定
C.
预算定额计量单位的确定首先要确切反映分项工程或结构构件的实物消耗量
D.
预算定额计量单位的确定其次要有利于减少项目、简化计算的目的
E.
预算定额计量单位的确定也要能较准确反映定额所包括的综合工作内容
【多选题】下列对预算定额计量单位的确定,正确的是( )
【简答题】There are solutions, such as building water-transfer aqueducts, hydroelectric dams, and desalination plants. But they may be incredibly ___.
【判断题】The main difference between contemporary dams and Dujiangyan system is that the former block the flow of water while Dujiangyan allows water to flow naturally.
【判断题】Hydropower is electricity made by generators that are pushed by still water. It is usually made with dams that block a river to make a reservoir or collect water that is pumped there.
【判断题】The government has to open the dams to provide more water for the people.