________ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai. (2009浙江卷)

A．To be tried

B．Tired

C．Tiring

D．Being tired

程序测试分为静态分析和动态测试。其中_________是指不执行程序，而只是对程序文 本进行检查，通过阅读和讨论，分析和发现程序中的错误。