民营银行降息潮起→,6月4日美股成交额前20：苹果A20芯片或采用台积电2nm工艺,　　??5??30?????????С?С??????????????????????????е???????????3?????6?????1??2??3???????????????　　??????????6??1?????????м????6??16????????????????????????????3?????6?????1??????????????????????????????????????0.3??0.3??0.1??????1???7???????????????????????0.25??????　　???????????????????????????С?????С????????У???2?????3?????5????????????????。