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ACDE
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WhichofthefollowingisNOToneofthecharacteristicsofidioms?
Idiomsnominalinnaturehavea(n)______asthekeywordineachandfunctionasanouninsentences.
CollinsCOBUILDEnglishLanguageDictionary(1987)hassomeuniquefeaturessuchasdefinition,extracolumnand______.
英语翻译：thescienceofbioticcontrol
TheIndo-EuropeanlanguagefamilyismadeupofthelanguagesofthefollowingEXCEPT______.
