低碳经济在本质上就是可持续发展经济，其核心是（）
参考答案：低碳产业;低碳消费;低碳技术;低碳能源
An analyst is considering a company that has had Net Income of $ 15000000 on sales of $ 500000000. The company also has a Total Asset Turnover rate of 1.50 and a Total Assets/Equity ratio of 2.0. The company has a target payout ratio of 40%, what is the expected long-term earnings growth rate for this company（）
A. 9.25%.
B. 6.00%.
C. 5.40%.
在安排购买性支出时，政府必须遵循的原则是( )。
A．强制性原则
B．平等性原则
C．等价交换原则
D．主动性原则
