"1 +1 = 2?, Which seems to be here to stay, but please take a look at a pile of sand plus a pile of sand, it is not equivalent to a pile of sand it? 1 cm decimeter +1 is not equal to 11 cm it? ( Examples) This calls for innovative thinking we. As we gradually grew up, our brain has started a non-flexible. . . . . . "
记得采纳啊