??λ????

    ???????????????????????????????????????????????????????????????У???????????????????????2020??60??????????????????????????????????2020?????????????????????????????

    1.??????2018???????У????2016??????????У????

    2019???????У????2017??-2019??????????У????β???????δ??У?????????????2020-2021??????????

    2.???????

    ??????????????????????????????/10????*??5????-???????У?????????

    2019-2020?????????????δ??У???????????????????????????350?/??????????150?/??????У?????????У?????????????????,15????????????????,15??????????????????

    3.??????6??8?????????????????????????У????????????λ????????????????????????????????????????????п???

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                                          2020??6??5??