是科学！ 因为我在高3 科学老师对我们做实验，如果风水涨上去了呢它又下跌了，它下降了  他又上升了，所以这是不稳定的现象！                                                                                                                                                                                                                                                                                                                                                                                                                                                 谢谢支持！