现代物流通过供应链强化企业间的关系，因此，现代物流商品供应体系的中心是（）
A.成本
B.环境价值
C.服务
D.信息
参考答案：D
根据句意及单词的首字母完成句子。
1. Jack is always late for schoo1,so his teacher is m at him.
2. He left a m on the table. Did you see it?
3. What other l sides Chinese?
4. She said she was having a s party for her mother.
5. What h to you?You look unbappy.
项目的盈利能力的主要分析指标有( )。
A．投资回收期
B．内部收益率
C．资产负债率
D．财务净现值
E．资本金净利润率
