工程项目绩效评价方法中，( )是一种基于战略管理的业绩考评工具。
A．平衡计分卡B．概率树法C．赢得值法D．关键绩效指标法
参考答案：A
同时投掷两枚硬币100次，两个都是正面的次数约为 ______次．
It is illegal for a public official to ask people for gifts or money（）favors to them.
A. in preference to
B. in place of
C. in agreement with
D. in exchange for
