负分数集合:{______…};
非负整数集合:{______…};
负有理数集合:{______…}.
, , 3.14, , , 0, , .
整数集合:{________________________________________…};
负分数集合:{______________________________________…};
正有理数集合:{____________________________________…};
, , , , 0, , , , 10, ,
正整数集合:__________________;
负分数集合:__________________;
非负有理数集合:__________________;
5.2,0, , , , , , , , …
①;②;③:④ , ⑤;⑥(两个1之间的0逐次增加);⑦;