单项选择题 财务评价常用的指标中，反映项目财务上投资回收能力的重要指标是_____。

单项选择题 凡涂在建筑物或构件表面的砂浆，可统称为抹面砂浆。 A、正确 B、错误

单项选择题 In general, the controls imposed upon children represents the needs of parents and the values of the community as much as the child's own happiness and well-being. What does the underlined part function as? A、predicate B、predicative C、attributive D、complement