??????????6???15? (?????????? ???????)??????????,?????,?????????“???????????”???,???20??????????????????,????????????56????“????????????”?

56????,“?????????”???8?????,400????,????????,??“?????”,????,?,????

“???????????????????????,?????????????????,????????,????????,????????,?????????,??????”????????76??????????,?????????????????,??????????????????,?????????,?????????,????,“?????????,????????????????????”?

6??????????,“?????????”56?????????????8????,400????,???????????????????? ???

??,??????

“????,????????????????????,???????????,????????????????,????,???????????,??”????76????,????,?????,????????????

??????????,????,????,???????????,????,????,?????,????,????,?????????????????,???????“??????”??????????,???????“???????”????,??????

20????60?????????,?????????,20??“??”??????????????????,??,???????“?????????,????????????????”??????????,?????????

“??????????????,???????,?????????,????,??,????,???????????”?????????

6?????????????,“???????”??“??”?????????????

??????????“??”???????,????????

???????,?????????,??????,????,????????“???????????”????????????????????????,???????3?????,????10?????

“??,????????????,??????,?????????,??????????,?????????”?????,??????,??????,??????,????????????4????????12??????????????700??????,?????……

???????,“???”?????????????????“???????”???????????????,???????????,????????????,????????

“????????,??????,???,?????????????????,???????????????,???????????”“????????????”??????????,??????,??????????,?,?????????,???????????????????????????????

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

?????,“???????”???????????,?????????,??????20???????????????,???????????????????,??,??????????,????,??????????

6???,“?????????”??“???????????????????????????”??????????????

??,50???????????

“??????????……???,??????,?????,??????????????????,????????”????,??????????????,?????,?????;??,?,??????

“????????????,???????,?????????????,?,???”???????????,?????????????,“????????”????,??????

???????,“?????????”???????????,??????????10?????30?????????????????????????,???????????????????????????,?????

“????,????????????????,???,???????,?????????”???,?????,????????????,??,????,“?????,????????????????”?(?????????)

???:???? “????”_????

?? ??“?????”50?“????”??

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

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

3???????95?

4?????

5???????

??????????6???15? (?????????? ???????)??????????,?????,?????????“???????????”???,???20??????????????????,????????????56????“????????????”?

56????,“?????????”???8?????,400????,????????,??“?????”,????,?,????

“???????????????????????,?????????????????,????????,????????,????????,?????????,??????”????????76??????????,?????????????????,??????????????????,?????????,?????????,????,“?????????,????????????????????”?

6??????????,“?????????”56?????????????8????,400????,???????????????????? ???

??,??????

“????,????????????????????,???????????,????????????????,????,???????????,??”????76????,????,?????,????????????

??????????,????,????,???????????,????,????,?????,????,????,?????????????????,???????“??????”??????????,???????“???????”????,??????

20????60?????????,?????????,20??“??”??????????????????,??,???????“?????????,????????????????”??????????,?????????

“??????????????,???????,?????????,????,??,????,???????????”?????????

6?????????????,“???????”??“??”?????????????

??????????“??”???????,????????

???????,?????????,??????,????,????????“???????????”????????????????????????,???????3?????,????10?????

“??,????????????,??????,?????????,??????????,?????????”?????,??????,??????,??????,????????????4????????12??????????????700??????,?????……

???????,“???”?????????????????“???????”???????????????,???????????,????????????,????????

“????????,??????,???,?????????????????,???????????????,???????????”“????????????”??????????,??????,??????????,?,?????????,???????????????????????????????

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

?????,“???????”???????????,?????????,??????20???????????????,???????????????????,??,??????????,????,??????????

6???,“?????????”??“???????????????????????????”??????????????

??,50???????????

“??????????……???,??????,?????,??????????????????,????????”????,??????????????,?????,?????;??,?,??????

“????????????,???????,?????????????,?,???”???????????,?????????????,“????????”????,??????

???????,“?????????”???????????,??????????10?????30?????????????????????????,???????????????????????????,?????

“????,????????????????,???,???????,?????????”???,?????,????????????,??,????,“?????,????????????????”?(?????????)

???:????