听写于：2016-12-27 22:40 用时：17:55 正确率：92% 错词：20个
But why did Mayor Bloomberg say " even numbers and zero" ? Was it necessary to single zero out? It seemed a little odd to us. So we talked to Dr James Grime of the Millennium Maths Project at Cambridge University in the UK. And he says that the a similar issue came up in France in the 1970s.
" In 1977, the smog in Paris was so bad that we they had to restrict car use. So they used the same method that they use they're using in New York now. , alternating days for odd and even license plate licence plates' numbers. And the police did not know whether to stop , the zero-numbered licence plates. Actually, and so they just let them pass because they didn't know whether that it was odd or even. "
" So it seems not everyone is sure . but do mathematicians agree over of whether zero is odd or even? "
" The debate is settled among mathematicians. "
" Mathematicians are agreed that zero is an even number? "
" Zero is an even number, and it will pass every test and every definition of an even number. "
" Well, what are the usual tests or definitions for even numbers? "
" If you take a number and you double it, the result will be an even number. So if you take the number 3 three, and you double it, then you will you'll get 6 six. And 6 six is an even number. So that would will be the definition of even numbers. And zero will pass that test. So if you double zero, you will you'll get zero. But it will pass all the other tests for even numbers as well. If you alternate the even and odd numbers, then zero is between two odd numbers. It's between 1 one and -1. minus one. That's another example of the a test that it would pass. "
- Words worth to be remembered:
- single out :
挑选出 例句： We all did well, but the teacher singled him out for praise. 我们都做得很好，但老师就表扬了他一个人。
- single out :