??????2000????影??1000??????

????????????2000??影?? ??????????????? ????????弼??

2000????影??1000??????????????????

???????????￡??????15??????6????????1????壬???????????????60??

????????2000×6=12000????

?????????????????12000÷15÷100=8??(????????????????????100????=1????????)

??????????????????(12×24+30)÷100+1≈4??

??????????????????8-4=4??(???????????(45×2+30×2)÷100≈1.5??????????)

???軨??????(50+50+50+100-60)×15=2850???

300???????????????3000?????4000????????????????????!??R????????????!(???????????????????????????)

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PS:1000??????????軨??????????????!

???????????

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

??????2000?????????????!

?????????????40407?????????http://audiogearreviews.com/qmyx/