【单选题】___ of this room ___ empty.
【简答题】我们有如下代码:import numpy as np; x = np.array([[3, 79, 71],[59, 13, 95],[52, 68, 85],[99, 92, 27]]);rows = np.array([[0,0],[3,3]]); cols = np.array([[0,2],[0,2]]); y = x[rows,cols];print (y) 运行后y的内容是什么?仅...
【简答题】我们有如下代码:import numpy as np; x = np.array([[77, 93, 23],[54, 58, 12],[69, 25, 23],[65, 55, 56]]);rows = np.array([[0,0],[3,3]]); cols = np.array([[0,2],[0,2]]); y = x[rows,cols];print (y) 运行后y的内容是什么?...
【单选题】若 有条件表达式 (exp) ? x++ : y− − ,则以下表达式中能完全等价于( exp )的是( )。
【单选题】若有条件表达式 (exp)?a++:b--,则以下表达式中能完全等价于表达式(exp)的是
【简答题】我们有如下代码:import numpy as np; x = np.array([[54, 21, 43],[7, 21, 17],[53, 47, 32],[37, 8, 99]]);rows = np.array([[0,0],[3,3]]); cols = np.array([[0,2],[0,2]]); y = x[rows,cols];print (y) 运行后y的内容是什么?仅输...
【单选题】_________ of the population in this area __________ farmers.
【单选题】About _________ of the teachers in tour school were born in ________.
【简答题】我们有如下代码:import numpy as np; x = np.array([[28, 41, 41],[98, 19, 18],[79, 33, 85],[43, 7, 60]]);rows = np.array([[0,0],[3,3]]); cols = np.array([[0,2],[0,2]]); y = x[rows,cols];print (y) 运行后y的内容是什么?仅...
【单选题】______ of the room ______ empty.