????????????????5????????????????900????????????????????? •?????????????????????弶?????
•???????? ??????3???????????
•9C??????????????“????????”????
•?????????????? [??????OL]??????
•??????????????????????? ?????????
• ?????? ??桶??????????????????
?????1000??????????????????????????????????????50?????????20???????????????????λ?????????????????????????????????50???????????????????????????????????????
??????????????????5????????
???????????????β????????900???
?????????????1000??????????;??????????????磬?ò??????????20????????50????????????????????????????50????????????(????????????????????
???20?????????????????????????1000+50*20=2000??????
???????????????2000????????????????????????????????????????????!!
????????????????????!!
?????????http://bills.tgbus.com/click/aid/32841