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

2????????

3????????2021

4??????????

5???????????

????8??19? (???????????????? ????????)?????????A?????19????????????????(???)??,????,??“???”??????,??????????????,?????

???,???4.61%,?A?????,?????????????10%,????????????4%?

??,????,?????2500???,?????????8??????16????????????,?2506.8????,???COMEX?2546.2??????????

????????,?,????????7?????9??,????2500?“????????????????”,???????,?,??????????,?????

?2.18%,??“?????????”???????????,????????2.12%,??6.27????????????????(????,????);????????????2.73%,?????4.89???;?2.29%,????4.92????????????;????2.16%,????????8.05?????????????,????????“????”???

???,?????,?????????2893?,????0.49%;??8356??,??0.08%;???????????1589????,?0.14%?(?????????????) ???????:??