绘制时间一成本累积曲线的环节有:①计算单位时间成本;②确定工程项目进度计划;③计算计划累计支出的成本额;④绘制S形曲线。正确的绘制步骤是()。
A.①—②—③—④
B.②—①—③—④
C.①—③—②—④
D.②—③—④—①
A.①—②—③—④
B.②—①—③—④
C.①—③—②—④
D.②—③—④—①
A.压缩非关键线路上工作的时间
B.所有工作都按最早开始时间开始
C.所有工作都按最迟开始时间开始
D.尽可能减少单位时间内投入的人力和财力
下表显示了一个以常数边际成本10美元生产的垄断者面临的需求曲线。
(1)计算该厂商的边际收益曲线。
(2)该厂商的利润最大化产量和价格是多少?该厂商的利润为多少?
(3)在一竞争性行业中均衡价格和数量各为多少?
(4)如果该垄断者被迫以完全竞争的均衡价格生产,社会得益是什么?结果是谁获益谁受损?
The following table shows the demand curve facing a monopolist who produces at a constant marginal cost of $ 10.
a. Calculate the firm' s marginal revenue curve.
b. What are the firm's profit - maximizing output and price? What is its profit?
c. What would the equilibrium price and quantity be in a competitive industry?
d. What would the social gain be if this monopolist were forced to produce and price at the competitive equilibrium? Who would gain and lose as a result?
某I级铁路,限制坡度ip=10‰,有一凸形变坡点,该点计算标高为100.00m,相邻坡度il=+2‰,试计算对称式抛物线型的竖曲线切线长及该点的标高。
A.单次接触时间
B.首次接触时间
C.累积作用时间
D.接触方式
A.15
B.20
C.22
D.30