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答案:
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1.C.ps[0][2]D.并(ps 1) 3
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2.串“ababaabab”的nextval为: -1 0 -1 0 -1 3 0 -1 0|-1 0 -1 0 -1 3 0 -1 3|-1 0 -1 0 -1 3 1 2 3|-1 0 0 1 2 3
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3.【单选题】Which of the following matrices does not have the same determinant of matrix C: [1, -1, -3, 0; 0
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4..-1 0 0 1 2 3 0 2 3B.-1 0 0 1 2 3 1 2 3C.-1 0 1 1 2 3 1 2 3D.-1 1 1 1 2 3 1 2 3
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5.0 1 2 1 2 1 1 1 1 2 1 2-1 0 1 2 3 4 5 6 7 8 8 8-1 0 0 1 2 3 1 1 2 3 4 50 1 2 3 0 1 2 3 3 2 2 3 4
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6.设 a 1 = (1 , 1 , 0) , a 2 = (0 , 1 , 1) , a 3= (3 , 4 , 0).求 a 1 - a 2及3 a 1 2 a 2- a 3.
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7.-1 0 1 2 3 4 5 6 7 8 8 80 1 2 3 0 1 2 3 3 2 2 3 4-1 0 0 1 2 3 1 1 2 3 4 50 1 2 1 2 1 1 1 1 2 1 2
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8.下面代码的运行结果A.0 1 2 and 0 1 2B.0 1 2 and 3 3 3C.3 3 3 and 0 1 2D.0 0 0 and 3 3 3
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9. 设 α=( −1 1 0 ) , A=( 2 0 1 0 4 2 1 1 0 ) , B=( 1 0 0 3 2 2 ) ,则 αAB=
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10.0 1 1 2 3 1 3 2 7 6 5 0 6 2 5 7 6 6 0 1 1 6 4 3 2 7 6 5 5 3 6 5 3 2 2 7 2 6 6 1 2 6 5 0 2 7 5 0 1 2 3