?? ??????????????????????????
????:1?????vx:??????
2?????????
3??????????
4??????
5????????
?????????9?????????????????????????22???? ?????????????????????????????(????“?”)???????,9??????22?????????13???????????????????40?????,???????????“??????”???????????????????????????,????????????
???????,???????????????3.35????,??????????????????21???????????,???????????-R????????????????
??,??????????????????,?????????????????????????????,???????,??,????179?????????????,????????0.5???????????
?,11???????????????????,??????????10?????????????????,1????????????????,???,??11???????????
??????,?,??????????????????????????????,????????????????????????(?????) ??:????????????????