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1-1
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(a)
t
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1
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4
鍙彇
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2
锛?/p>
3
锛?/p>
4
鍊?
t
0
f
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(c)
1
2
3
1
2
3
4
5
6
7
8
鍙彇
1
锛?/p>
2
锛?/p>
3
鍊?
t
0
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(d)
1
2
3
4
5
6
7
8
n
0
(f)
1
1
2
3
4
5
6
7
8
鍙彇
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锛?/p>
1
鍊?
x
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n
0
1
1
2
3
4
5
6
7
8
鍙彇
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锛?/p>
1
鍊?
x
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-1
鍥?/p>
1-2
t
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(a)
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(b)
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(c)
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1
2