ch2-les7
TRANSCRIPT
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2
.
,
80 , .
1.70,
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2
1.
2.
3. 80
4. 1,70
4.
()
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2
( )
,
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2
,
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2
1.
2.
3. 80 1,70 -
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1,70 -
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4.
()
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7/31/2019 ch2-les7
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2
( )
,
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2
,
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2
1.
2.
3. 80
1,70 -
4. 80
1,70 -
5. 80
1,70 -
6. 80
1,70 -
7.
()
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7/31/2019 ch2-les7
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2
( )
,
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7/31/2019 ch2-les7
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7/31/2019 ch2-les7
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+ + +
..
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