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

2?????

3???????

4???????

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

??12???20????? (?? ??? ?)????????????,20??,????????????????GS7971??,?“????????????????????”???????

??20?? (???)

??????,????,???????????????????????????GS7971???????????????????,??????8???,???12??????????????30?;?????????????????GS7972??,???13????????45???????????????,??????17???20??????

??????????,??,“?????”??93%,??,????

???,?,?????????????,??????????????????12????21???,???,?????,??????11????????

?????,?????????????????,???????????????30????????????,??????????????????????????????;??25??????,???

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

???:?????????????