根据我国外汇收支情况、进出口结构、进出口环节税费及出口退税补贴等情况，目前我国的影子汇率换算系数取值为( )。
A. 1.08
B. 0.8
C. 1.8
D. 2.08
How is the research of Messe and Callahan-Levy related to earlier experiments in the same field
A. It suggests a need to discard methods used in earlier experiments.
B. It tends to weaken the assumptions on which earlier experiments were designed.
C. It suggests that the problem revealed in earlier experiments may be more widespread than previously thought.
D. It helps to explain a phenomenon revealed in earlier experiments.
经济分析中必选的分析指标是( )。
A. 经济净现值或经济内部收益率
B. 投资回收期或经济内部收益率
C. 经济净现值或净年值
D. 净年值或投资回收期
采用直接投资和资本金注入方式的政府投资项目，由政府进行投资决策，政府要审批项目建议书和可行性研究报告，并承担项目的( )。
A. 科学决策
B. 多目标综合决策
C. 民主决策
D. 风险责任
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