????????1?30??????????? ???????,30??????????,?????5.6??,??????????21?6.4??

????????????????????????????,30????????????10?11??,????????5.6?,?????10???,??????????5?????????????,??????????10???4????,??????????3.2??4.3??,??

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

?????,30????10???11?5.2?????(?) ??????:?? ??“??100????”????

?? ???? ?5.6????????????

????:1???100????:?????vx

2????????????

3??????????

4?????????

5????????????

????????1?30??????????? ???????,30??????????,?????5.6??,??????????21?6.4??

????????????????????????????,30????????????10?11??,????????5.6?,?????10???,??????????5?????????????,??????????10???4????,??????????3.2??4.3??,??

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

?????,30????10???11?5.2?????(?) ??????:??