经常收到同学们的来信,问了很多这样那样的问题之后,往往都会加上一句“这个问题困扰我很久了,但是一直都不好意思提出来,生怕别人说我幼稚……”诸如此类的话,事实上,知识没有大小之分,有时候正是对小问题的关注才形成了大讨论,从而改变了人类的生活。所以,请勇敢地提出问题,让我们共同成长!下面,我们就来探讨一些“很冷”的话题。 Often receive letters from my classmates and ask many questions like this often with the phrase “This question has been bothering me for a long time, but has always been embarrassed to come forward for fear of others saying that I am naive ......” and so on In fact, no knowledge of the size of the points, and sometimes it is the attention of small issues formed a big discussion, thus changing the lives of human beings. So, please bravely ask questions, let us grow together! Now, we will explore some “very cold ” topic.