第5题: [单项选择]项目评估的投资估算方法为( )。 A. 参照类似项目套算 B. 指标估算法 C. 逐项估算法 D. 扩大概算法 参考答案:C 答案解析:[解析] 投资估算方法在各个阶段分别是：(1)投资机会研究：参照类似项目套算； (2)初步可行性研究：指标估算法；(3)可行性研究：逐项估算法；(4)项目评估：逐项估算法。
第21题: [单项选择]The three men tried many times to sneak across the border into the neighboring country, _________ by the police each time. A. had been captured B. being always captured C. only to be captured D. unfortunately captured 参考答案:C 答案解析:[汉译] 这三个人曾多次企图越境到邻国去，但不幸每次都被警察逮着了。
[注释] “only”与不定式合用，表示未预料的不幸结果。例如：I finally find my watch，only to
