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Transcript
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14
100
1.
2.
3.
4.
5.
90
1/2~2/3
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15
1.()()()
2.()()
3.
1. 2. 3.()
4.() 5.() 6.
7.() 8. 9.()
10. 11. 12.
100
()
()
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16
1.
2.
1.
2.
1. Y
2.
1.
2. 1/2~2/3
3.
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17
1.
2.
3.
1.()
2.
3.
1.
2.
1.
2.
3.
4.
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18
1 2 3
.
..
.
1.
2.
1.
2.
3.
4.
1.
2.
1.
2.()
3.
4.
1.
2.
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19
1.
2.()
3.
4.
1.
2.
1.()
2.()()
3.
1 2 3
1. 2. 3.
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20
1.
2.
1.
2.
()
1.
2.
1.()
2.
1.
2.
1.
2.
3. 8
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21
1 2 3
1... 2..
1.
2.
1.
2. 1/2 1/2
3.
1.
2.
1.
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22
1 2 3
1.. 2..
...
2. 1/2
3.
1.
2.
1.
2.()
3.
1.
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23
2.
1.
2.
1.
2.
3.
1.
2.
3. 90
4.
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24
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