仿照例句，用一组排比句向朋友们简介百草园的快乐生活。

朋友，百草园真是我童年的乐园呀！春天，你看那五彩缤纷、生机勃勃的草长莺飞。

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The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (71) of the technical requirements for the software product.
During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each (72) that it must meet. The starting point is usually a set of high-level requirements from the (73) that describe the project or problem.
In either case, the requirements definition team formulates an overall concept for the system and the defines (74) showing how the system will be operated, publishes the system and operation concept documents, and conducts a system concept review (SCR) .
Following the SCR, the team derives (75) requirements for the system from the highlevel requirements and the system operations concept. Using structured or object-oriented analysis, the temn specifies the software functions and algorithms needed to satisfy each detailed requirements.

A．rules

B．principles

C．scenarios

D．scenes