????:1???????:??app????

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

3????????????

4?????

5?????????

??10????????????????14? (?? ??????????)????14???????????,???????????????“???????????”????????,??,??,??

????“??????”8?????15??,??,??(?????????????????)????????????,????????122??????????????????,?2.7???????????,???112?????????,?????2.54???

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

?????“?????????????????????,?????????????”??????????,??????,???????8???????????,?????????,?????????????????????????,???

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