商业银行对个人住房贷款合作机构审查时，分析其偿债能力，重点看（）。

A.销售情况表

B.资产负债表

C.利润表

D.现金流量表

(31) analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the (32) for designing and constructing an improved system. (33) is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called (34) . (35) is another such technique that integrates data and process concerns into constructs called objects.

（33）是（）

A. Structured analysis

B. Information Engineering

C. Discovery Prototyping

D. Object-Oriented analysis