?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??????????????(????) ??:????? “??????”????

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

????:1???????:????600??

2?????v?

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??????????????(????) ??:?????