（）是股四头肌的主要功能。

A、维持人体直立，屈大腿，伸膝关节

B、维持人体直立，内收大腿，伸膝关节

C、维持人体直立，伸大腿，伸膝关节

D、维持人体直立，外展大腿，伸膝关节

The approach we propose is a system-oriented methodology for knowledge acquisition, this orientation emphasizes ongoing documentation throughout each cycle and technique applied. Program-wide documentation is suggested, both for the purpose of internal (91) and for later verification and (92) efforts. The documentation system we propose includes a central "knowledge acquisition (93) " which is (94) to reflect knowledge acquisition plans, session nodes, and domain expert participation. Specifically, (95) within the database system include knowledge acquisition forms, which document plans for, and notes from, knowledge acquisition session, domain expert file, and rule content forms.

（94）是（）

A.edited

B.updated

C.exchanged

D.revised