已知c= np.arange(24).reshape(3,4,2) 那么c.sum(axis = 0)所得的结果为()
A. array([[24, 27], [30, 33],[36, 39],[42, 45]])
B. array([[12, 16],[44, 48],[76, 80]])
C. array([[ 1, 5, 9, 13],[17, 21, 25, 29],[33, 37, 41, 45]])
给定多维数组arr,则输出为
A. array([[1,2,3],[4,5,6],[7,8,9]])
B. array([4.,5.,6.])
C. array([2.,5.,8.])
D. array([1.,5.,8.])