第2题: [多项选择]项目规模评估中效益成本评比法的具体方法有( )。 A. 净现值比较法 B. 盈亏平衡点比较法 C. 运营成本比较法 D. 最低成本分析法 E. 费用效率分析法 参考答案:A,B,D 答案解析:[解析] 效益成本评比法主要是将各方案的经济效益或成本进行比较,选取经济效益最高或成本最低的方案。这类评比的具体方法有盈亏平衡点比较法、净现值比较法和最低成本分析法。
第31题: [单项选择]According to the passage, which of the following is true about all early domesticated plants A. ( They were varieties of weed B. (They were moved from disturbed area C. ( They succeeded in areas with many tree D. ( They failed to grow in trampled or damaged area 参考答案:A