铁道线路由哪些构筑物组成?
参考答案:
铁路线路由路基、桥隧建筑物和铁路轨道所组成。它是一个整体工程结构,共同发挥各自的功能,其任何组成部分的改变或损坏,都将影响整体功能。
An investor gathered the following information about a real estate investment:
A.Cost of the property
B.$800000
C.Amount financed by mortgage loan
D.80%
E.Interest rate on mortgage loan
F.13%
G.Present value of after-tax cash flows from the investment
H.$156000
I.Investor's required rate of return for an equity investment
J.15%
不是通常采用的调制方法是:()。
A、调幅
B、调频
C、调相
D、调谐