更多“A: How long does it take to go there by train? B:(). ”相关问题
  • 第1题:

    4.—_________ Mike________ his homework in the evening?

    —No,he doesn't.

    A. Do;does

    B. Does;do

    C. Do;do

    D. Does;does


    正确答案:B
    4.B【解析】考查实义动词的疑问式为“Does+主语+do,故选B。

  • 第2题:

    下列词形变化中,运用了附加手段的是()

    A.pen-pens
    B.long-longer
    C.foot–feet
    D.man–men
    E.go–went

    答案:A,B
    解析:

  • 第3题:

    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)


    B

  • 第4题:

    Which of the following may illustrate the difference between "competence" and__________ "performance"?

    A.What a person "knows" and what he/she "does".
    B.What a person "can do" and what he/she "does".
    C.What a person "does" and what he/she "knows".
    D.What a person "does" and what he/she "can do".

    答案:A
    解析:
    考查语言学知识。competence“语言能力”,指语言使用者对于语言规则系统的潜在意识;performance“语言运用”,指在具体场景中语言的实际运用,二者对应的分别为“knows”和“does”。故选A。

  • 第5题:

    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]


    train_x[3]

  • 第6题:

    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


    D