建设工程项目施工成本预测是施工项目成本( )的依据。
A．决策与计划
B．计划与控制
C．控制与考核
D．计划与核算
参考答案：A
把一根木料锯成3段要3.6分钟，锯成8段要（ ）分钟。
Under what circumstances would Bob replace him
A．If he fell at that time.
B．If he failed the exam.
C．If he didn’t come in time.
D．If he asked in time.
