The Rational Unified Process (RUP) is a software engineering process, which captures many of best practices in modem software development. The notions of use-cases and ______have been proven to be an excellent way to capture function requirements. RUP can be described in two dimensions - time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive ______ which is concluded with a well-defined ______ and can be further broken down into ______ a complete development loop resulting in a release of an executable product, a subset of the final product under development, which grows incrementally to become the final system. The content structure refers to the disciplines, which group ______ logically by nature.

A. actors B. artifacts C. workers D. scenarios

债务人对债权人进行的以下哪几个个别清偿，管理人请求撤销的，人民法院不予支持。（）

A.债务人与债权人恶意串通损害其他债权人利益

B.使债务人财产受益的其他个别清偿

C.债务人支付劳动报酬、人身损害赔偿金的

D.债务人为维系基本生产需要而支付水费、电费等的