????:1???gm????:?????????????

2??????????

3??????????

4?????????

5????????

????????????????(???????????):?????(10????12????????)???,??????,?????????????????????????????5????????

?????23???,????30%????????????????,??????????10????,?????????“???”?

????????????,?????????????????????????????7??????????????,?????1200??,???????27????42?70????80?????,??40???2?10?????????????7???42????????????????

????????????,????????????????????????????,??????70%?,????13???? ????:???