【判断题】【消耗次数：1】
生态旅游具有经济效益、社会效益、环境效益以及人文效益。
①
对
②
错
参考答案：
复制
纠错
相关题目
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以下（）是计算经济效益的公式。
①
经济效益＝生产总值-生产成本
②
经济效益＝生产总值+生产成本
③
经济效益＝生产总值／生产成本
④
经济效益＝(生产总值-生产成本)/生产总值
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