The train arrives at the North Pole at five to the midnight.()
The train arrives at the North Pole at five to the midnight.()
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A General Election is held every __ years and there are ___ members of Parliaments are elected. A.five, 600B.five, 650C.five, 651D.four, 651
classNav{11.publicenumDirection{NORTH,SOUTH,EAST,WEST}12.}13.publicclassSprite{14.／／insertcodehere15.}Whichcode,insertedatline14,allowstheSpriteclasstocompile?() A.Directiond=NORTH；B.Nav.Directiond=NORTH；C.Directiond=Direction.NORTH；D.Nav.Directiond=Nav.Direction.NORTH；
importjava.awt.*；publicclassXextendsFrame{publicstaticvoidmain（Stringargs）{Xx=newX（）；x.pack（）；x.setVisible（true）；}publicX（）{setLayout（newBordrLayout（））；Panelp=newPanel（）；add（p，BorderLayout.NORTH）；Buttonb=newButton（North”）；p.add（b）：Buttonb=newButton（South”）；add（b1，BorderLayout.SOUTH）：}}Whichtwostatementsaretrue？（）A.Thebuttonslabeled“North”and“South”willhavethesamewidth.B.Thebuttonslabeled“North”and“South”willhavethesameheight.C.Theheightofthebuttonlabeled“North”canveryiftheFrameisresized.D.Theheightofthebuttonlabeled“South”canveryiftheFrameisresized.E.Thewidthofthebuttonlabeled“North”isconstanteveniftheFrameisresized.F.Thewidthofthebuttonlabeled“South”isconstanteveniftheFrameisresized.
Given:Which code, inserted at line 14, allows the Sprite class to compile?() A.Direction d = NORTH;B.Nav.Direction d = NORTH;C.Direction d = Direction.NORTH;D.Nav.Direction d = Nav.Direction.NORTH;
在MINST数据集中，访问训练集train_x的第4个样本，可以通过_______语句实现。A．train_x[4]B．train_x[3]C．train_x[0:3]D．train_x[:4]
下列哪些语句会开始模型的训练：A．LinearRegression().fit(x_train,y_train)B．lr_mod.predict(x_train)C．lasso_mod.fit(x_train,y_train)D．vote_mod.predict(x_train)
5、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_______。 import tensorflow as tf import numpy as np mnist = 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