【单选题】在敏感性分析中,临界点是指项目允许不确定因素向不利方向变化的( )。
【简答题】在敏感性分析中,临界点是指项目允许不确定因素向不利方向变化的( )。
【简答题】Some students often listen to music between classes to____________ themselves. [ ] A. recover B.reward C.refresh D. remind
【单选题】— Why do you often listen to the radio? — To get some information _____. [ ]