中国人民共和国合同法规定的经济合同，属于债权合同的范围。（）
参考答案：对
The president of the World Bank says he has a passion for China , he remembers starting as early as his childhood.
A．where
B．which
C．what
D．when
按照物流运输、仓储、包装等物流的功能进行成本分类的方法，大体上分为（）
A、物品流通费
B、物流管理费
C、供应物流费
D、信息流通费
