用所给单词的适当形式填空。

1. The lawyer often advises people on their ____ matters. (person)

2. He thought ____ was not a good way to help people. (violent)

3. The party ____ by our school was a great success. (organize)

4. The black people in some countries aren't being ____ well at present. (treat)

5. I will never forget the ____ of the boss when I worked there. (cruel)

由于节流装置造成的流束局部收缩，同时流体又是保持连续流动状态。因此在流束截面积最小处的（）最大，流体的（）最低。