日常生活是一种散文化的沉沦状态，因此电影具有让人觉得远离生活状态的一种仪式化功用。
参考答案：对
She _____ with the symphony orchestra three times this season.
A．played
B．has played
C．has been playing
D．is playing
根据真空三极管的特性曲线可以看出，改变栅极电流就可使阳极电流发生变化。
