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【多选题】
费用-效益分析方法是国民经济评价的基本方法，它要求运用（ ）等国民经济参数，分析计算投资项目的国民经济费用和效率，评价项目投资行为的国民经济宏观可行性。A.
影子价格
B.
市场价格
C.
影子汇率
D.
影子工资
E.
社会保障折现率
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【单选题】在正常生理状态下声音传导,以下说法正确的是
A.
以气导为主
B.
以骨导为主
C.
两者同时起作用
D.
高频声音以气导为主，低频声音以骨导为主
E.
低频声音以气导为主，高频声音以骨导为主
【简答题】_________就是把管理信息系统开发的全过程按其生存周期分成若干阶段,每个阶段有相对独立的任务,然后逐步完成各个阶段的任务。
【简答题】Section B Directions: There is a long conversation with 5 missing sentences. At the end of theconversation, there‘s a list of given choices. You are required to select the ONE that best fits into the ...
【简答题】Questions 1 to 10 are based on the following passage. (填大写字母即可) The elephant sanctuary in Hohenwald, Tennessee was built by Carol and Scott, who have seen enough abuse and 1 at circuses and zoos. It i...
【单选题】工序基准定义为( )。
A.
设计图中所用的基准
B.
在工序图上用来确定本工序加工表面尺寸、形状和位置所依据的基准
C.
装配过程中所用的基准
D.
用于测量工件尺寸，位置的基准
【简答题】The elephant sanctuary in Hohenwald, Tennessee was built by Carol and Scott, who have seen enough abuse and 1. _______ at circuses and zoos. It is the nation’s largest natural habitat refuge developed...
【简答题】Questions 1 to 10 are based on the following passage. The elephant sanctuary in Hohenwald, Tennessee was built by Carol and Scott, who have seen enough abuse and 1 at circuses and zoos. It is the nati...
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