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

2????????

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

4?????200??

5?????????

?????????????1?8? (????)1?7?9??5??,???6.8?????????,????4??????????????(??,??????????????????????),?????????????????????????

?????????,?1?7??18??,???????????202????????????????????????????252??????????????,??4???;?????????500??????????????????

???????????????,?,????????4??,?????????????????????????????,??57??;?50?,?4??×5?,???????????21???30???;??,??????????,???????????????????,???????????????????(?????)

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