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

2?????????????

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

4???????

5???????

??????????2?????????????13??? (????????? ???)????????????????????????13???????,??,?????????????????,?1940???,??2????10??????????????1600????????

??????2???10??,??(????????????????14.1%),?????????????,??,???

????????????? ??????????

??????,?(2?5??10????),?1.08????????????????????????????????????,???????????????????????????2?14.6%,?????????85.1%???????4300?????????4800?,?????????????

????????“??”????????????????,?????????????????????,?800???????????;???????????2???21????????(30??,?80%)??????,????30%?50%???????????????,????5????????????????????????

??????,?????????19??????100?????????????????,???????????1.2???????

??,??“??????”“???”???????????????????,????????????????“?????”????,???2000??,?????????????700??????????????

?,????,???110?????,????5.5%???????(???)

?????:???