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

2????????

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

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%?(??) ????:?????