高速铁路的列车时速范围是多少?
参考答案:
高速铁路的时速范围250km/h—350km/h。
The woman was sad after she lost her only son in the earthquake. Her friend helped her go
through the difficult period and she finally _____. [ ]
A. kept up.
B. cheered up.
C. turned up.
D. called up.
关于建设项目决策与工程造价的关系,正确的说法是( )。
A.工程造价的合理性是项目决策正确性的前提
B.项目决策的内容是决定工程造价的基础
C.工程造价的高低、投资多少并不影响项目决策
D.工程造价的控制效果影响项目决策的深度