2????21??????,??????????????????,???

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

???????????????????????????,???????????,??34.1??,???????????????3???????????????49%,??????51%,????????????????????????93.6%,????????????39%,????????????????13%????,?????????????(?)???????????????????(???? ????)

????:???????

“?????????”????

?? ???:???????????34.1???

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

2?????????app

3?????????

4????????

5?????????

2????21??????,??????????????????,???

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

???????????????????????????,???????????,??34.1??,???????????????3???????????????49%,??????51%,????????????????????????93.6%,????????????39%,????????????????13%????,?????????????(?)???????????????????(???? ????)

????:???????