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

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

3??????95?

4???200????

5?????

? ??????7??21?????????10??:

?????????????,7????????????????????21??14????22?14?????,??????????????????????????????????????????????????????????????????????????,?????????????????,??(100~220???????????)??????????????(?????30~50?????????????????,?60??),???

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1?????;

2????????,?;

3????,????;

4???????????????????????????,??????

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