You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
2 lines
113 B
2 lines
113 B
3 weeks ago
|
如何认识自然数的性质?
|
||
|
依据性质可以对自然数进行分类 / 奇数与偶数 / 素数与合数
|