????:1???????:??????

2????????

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

4???????

5?????wx?

??????????????????????????2??18?????? ??????18??,??,?58?????????????????

??,??58??,????????????????13????????????????????,?????????33??5??????17?????,15??4????

?????????????????,??????????,????????????????????4???????????????,????????????????58???,????45????????????????????,??????????

???,??????,??????????????????????????????????(MMR???????)???,????????????????????????

?,??“?????????????30?”?

??????,?????8????????????

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