运行下面代码的输出结果为()。
Import numpy as np
A=np.array([[10,7,4],[3,2,1]])
Print(np.percentile (a,50))
Import numpy as np
A=np.array([[10,7,4],[3,2,1]])
Print(np.percentile (a,50))
A[[10 7 4][3 2 1]
B3.5
C[6.5 4.5 2.5]
D[7.2.]
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