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

2????????vx

3?????????

4???????

5????????

?????11?26???? (??? ?????????????????????)????“?????????S”26?????

????,??26??????????????????8?????????????????????30????,??“?S”????,??120???,“?S”?49?????????????????,????

?????????“??S”????????7????????????,????,“???????????????????????????????S”???????????????????????????????

?????????«????????????????????????????????»???????????,“????S”??????????,??????????????,????????????????

????????????,??????????“?S”??,?????

“?????????????S”????“????”?????????????“??S”?????????????27??,????????????????????600????,???????????????????????????1.4??(?) ??:?????