在波士顿数据集中,访问训练集train_x的第3列元素,可以通过______语句实现。 A: print(train_x[:, 3]) B: print(train_x[:, 2]) C: print(train_x[0:3]) D: print(train_x[:2])
在波士顿数据集中,访问训练集train_x的第3列元素,可以通过______语句实现。 A: print(train_x[:, 3]) B: print(train_x[:, 2]) C: print(train_x[0:3]) D: print(train_x[:2])
下载波士顿房价数据集,将训练集放入test_x中,则执行______语句可以获得其中的前5行数据。 A: print(train_x[:, 5]) B: print(train_x[:, 4]) C: print(train_x[0:5]) D: print(train_x[:4])
下载波士顿房价数据集,将训练集放入test_x中,则执行______语句可以获得其中的前5行数据。 A: print(train_x[:, 5]) B: print(train_x[:, 4]) C: print(train_x[0:5]) D: print(train_x[:4])
对手写数字数据集MNIST中的train_x训练集(60000,28,28)进行切片,下面对切片结果描述错误的是_______。importtensorflowastfimportnumpyasnpmnist=tf.keras.datasets.mnist(train_x,train_y),(test_x,test_y)=mnist.load_data() A: train_x[0,:,:]:第1张图片 B: train_x[0:10,:,:]:前10张图片 C: train_x[:,0:28:2,:]:对所有图片隔行采样 D: train_x[0:28:2,:,:]:对所有图片隔列采样
对手写数字数据集MNIST中的train_x训练集(60000,28,28)进行切片,下面对切片结果描述错误的是_______。importtensorflowastfimportnumpyasnpmnist=tf.keras.datasets.mnist(train_x,train_y),(test_x,test_y)=mnist.load_data() A: train_x[0,:,:]:第1张图片 B: train_x[0:10,:,:]:前10张图片 C: train_x[:,0:28:2,:]:对所有图片隔行采样 D: train_x[0:28:2,:,:]:对所有图片隔列采样
使用索引读取MNIST数据集中train_x训练集,下列语句描述正确的是_______。 A: train_x[0]:取第1张图片中的数据 B: train_x[2][1] :取第2张图片中的第1行 C: train_x[0][1][2]:取第1张图片中的第2行的第1列 D: train_x[2][1] :取第1张图片中的第2行
使用索引读取MNIST数据集中train_x训练集,下列语句描述正确的是_______。 A: train_x[0]:取第1张图片中的数据 B: train_x[2][1] :取第2张图片中的第1行 C: train_x[0][1][2]:取第1张图片中的第2行的第1列 D: train_x[2][1] :取第1张图片中的第2行
Then (the train comes) A: the train comes B: the train come C: dose the train come D: comes the train
Then (the train comes) A: the train comes B: the train come C: dose the train come D: comes the train
在MINST数据集中,访问训练集train_y中的第6个样本的标签值,可以通过_______语句实现。 A: train_x[:,5] B: train_x[:,6] C: train_y[5] D: train_y[6]
在MINST数据集中,访问训练集train_y中的第6个样本的标签值,可以通过_______语句实现。 A: train_x[:,5] B: train_x[:,6] C: train_y[5] D: train_y[6]
Which train has now been cancelled? A: The train to Jinan B: The train to Zhengzhou C: The train to Tianjin D: The train to Hangzhou
Which train has now been cancelled? A: The train to Jinan B: The train to Zhengzhou C: The train to Tianjin D: The train to Hangzhou
My fatheroften goesto work_______ . A: with train B: y train C: from train D: to train
My fatheroften goesto work_______ . A: with train B: y train C: from train D: to train
What time ……… A: the train leaves? B: leaves the train? C: is the train leaving? D: does the train leave?
What time ……… A: the train leaves? B: leaves the train? C: is the train leaving? D: does the train leave?
Which train has now been cancelled A: [A] The train to Jinan. B: The train to Zhengzhou. C: The train to Hangzhou.
Which train has now been cancelled A: [A] The train to Jinan. B: The train to Zhengzhou. C: The train to Hangzhou.