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