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4.???

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1

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1.????????

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???????500?????? ??????????RMB??? СR???R ?????????

2.???????????? ??????? ??????????????? ?????????

3.??????? ???????????2?????????? ???ж?? ????3?? 3?????????4??

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1.????????

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?????? ??????? 4????????????

2.???2???

12??4????? = 240???? ??????????????? 200????? ??????

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

3.???????

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4.???

????16???????????????????3??4????? ???????R?????????????????

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