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

2???????

3??????????

4??????????

5??????????

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

??????? ???????:???????,???????,?????????,????,???????????,???,?????????????????,??????,???????????,????20%?

???????? ??:7?????5??,?? ????????(????????????)??4000??????,??80%???,??????3000????????????4000???

??????????????? ?:???,??????,???????,????5??????180???,??????????????????????????,????,?????????????,???3??????????5????

?? ?????????????:???????????200??????,???(??????)???,??,??????????????

???????,7???,?????????????40% ???????????,???????????????????????????90%;??????????????????????????85%???????????,????

??:??????