题目:


在下列数-6,,3.1415927,0,2005,-,-0.1572891,92%中,
(1)属于正数集的有                                                  
(2)属于负数集的有                                                  
(3)属于整数集的有                                                  
(4)属于负分数集的有                                                .
这里显示答案和解析