????:1?????????:?????????

2????????vx

3??????

4????wx??

5???????

?????2?1??? ??:??????????????1????????????????,???????1????????????????31???????,??????6?????????????

?????????,?????,????????????????

?????????,??6???????????????????????,?6?????????

????????????,????????????

?????????,??????1?????????31??,??????,????,??????????????,???????“?????????????????????”?(????) ??:??