[单项选择]What does the author imply about desert-adapted mammals
A. They do not need to eat much food. B. They can eat large quantities quickly. C. They easily lose their appetites. D. They can travel long distances looking for food.
第18题: [单项选择]投资收益率是( )的比率。 A. 年净收益额与方案投资额 B. 年销售收入与方案投资额 C. 年净收益额与方案固定资产投资额 D. 年销售收入与方案固定资产投资额 参考答案:A 答案解析:投资收益率是投资方案达到设计生产能力后一个正常生产年份的年净收益总额与方案投资总额的比率,其中有两点需要注意:一、正常生产年份的年净收益总额,不是年销售收入;二、投资总额包括建设投资、建设期贷款利息和