Work through an example of an efficient or inefficient system,that you are familiar with.

问题描述:

Work through an example of an efficient or inefficient system,that you are familiar with.
(系统科学里的一道练习题)

以一个你所熟悉的高效或低效的系统为例来完成.
ps:只是字面意思,不太了解系统科学,剩下的自己揣摩吧.