First, let's see something: We all know that when a building is being build, workers will first dig a big hole in the ground, that's the basement of the building, it's mandatory, then they can start building the middle, the walls, and the tops.
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Well, let's see something really crazy with electronegativity.
让我们看一些东西,关于电负性的。
Let's say you want to see how something like cigarette smoking is changing in the population and the rates of cigarette smoking, and you want to look at people every five years from 1970 to 2000.
比如你想知道,人群中吸烟者的人数变化,和吸烟者的比例,在1970年至2000年每五年的情况
We can put a list in the list again, as we've seen before. So let's put the list containing the string a, and I'll print out so now we see something pretty interesting about a list, that we can mix up all sorts of things in it, and that's OK.
数组放到数组中去,让我们把这个包含,字符串a的数组放进去,然后再显示,我们看到了一些,挺有趣的事情:我们可以把各种,各类的东西混合着放进去,没问题。
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