我想问一下星际2有多少级难度模式？

I just want to know how many difficulty modes are there in SC2.

youdao

关键的问题是要分多少级，一些生物学的原则对这个问题可能有些帮助。

The key question is the number of levels to create, and several organising principles are possible for this purpose.

youdao

我可以告诉你，像楼梯一样升高的街道有多少级，拱廊的弯度多大，屋顶上铺着怎样的锌板；

I could tell you how many steps make up the streets rising like stairways, and the degree of the arcades' curves, and what kind of zinc scales cover the roofs;

youdao

So in fact, what does that suggest about the order of growth here? What is the complexity of this? Yeah. Logarithmic. Why?

复杂度是多少？,对的，对数级的么？，为什么呢？,学生：对数级的？

麻省理工公开课 - 计算机科学及编程导论课程节选