The nurse is providing care for a client who underwent mitral valve replacement. The best example of a measurable client outcome goal is to

A. change his own dressing.
B. walk in the hallway.
C. walk from his room to the end of the hall and back before discharge.
D. eat a special diet.

振动诊断的时域分析方法包括直接观察法、（）、示性指标法、时域同步平均法及（）诊断法。