回压曲线
参考答案：
回压在时间上的变化曲线。
解释下列加粗的词语。
臣尝从大王与燕王会境上（ ）
臣从其计（ ）
弟走从军阿姨死（ ）
合从缔交，相与为一（ ）
Until now the ______ of life is still beyond the knowledge of most common folks: few people know how and in what way the human organs are working and functioning.
A. wheels B. fate C. reels D. parts
