罗曼认为，信息资源配置特性包括（）
A.层次性
B.动态性
C.渐进性
D.合理性
参考答案：A, B, C
公文处理工作的组织包括哪些方面？
Which of the following statements about asset backed securities (ABSs) is most accurate（）
A. The credit rating of an ABS must be the same as that of the issuer.
B. Residential mortgages represent the largest type of asset that has been securitized.
C. There is an inverse relationship between credit enhancements and ratings.
