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7
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15
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15
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1
锛庝笅鍒楀彞瀛愪笉鏄懡棰樼殑鏄紙
D
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锛庯紟
A
锛庝腑鍗庝汉姘戝叡鍜屽浗鐨勯閮芥槸鍖椾含
B
锛庡紶涓夋槸瀛︾敓
C
锛庨洩鏄粦鑹茬殑
D
锛庡お濂戒簡锛?/p>
2
锛庝笅鍒楀紡瀛愪笉鏄皳璇嶅悎寮忓叕寮忕殑鏄紙
B
锛?/p>
锛庯紟
A
锛庯紙
x
锛塒(x)鈫扲(y)
B
锛?/p>
(
x) 鈹怭锛?/p>
x
锛?
(
x)(P(x)鈫扱(x))
C
锛?/p>
(
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y)(P(x)鈭(y))鈫?
x)R(x)
D
锛?/p>
(
x)(P(x,y)鈫扱(x,z))鈭?
z)R(x,z)
3
锛庝笅鍒楀紡瀛愪负閲嶈█寮忕殑鏄紙
锛?/p>
A
锛?鈹怭鈭)鈫扱 B锛嶱鈭≦鈭鈫掆攼R
C
锛嶱鈭?P鈭) D锛?鈹怭鈭≦)
(P鈫扱)
4
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锛?/p>
A
锛?/p>
(
x)(P(x)鈭≦(x)),P(x):x=1,Q(x):x=2,璁哄煙
:{1,2}