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() . , , . , , , - .
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* : 4:1:5.
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. 1 , 20 30 ., .
5 10 1% .
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5 | - | - | - | - | ||
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ѳ () | - | - | - | - | ||
(10% ) | - | - | 5 - 10 | - | - | |
10 | - | - | - | - | 1 - 2 | |
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璺. 20 - (3) . .
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