datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。查看指定包“datasets”中的数据集的代码是?( ) A: data(package="datasets") B: data("datasets") C: data(package=datasets) D: datasets
datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。查看指定包“datasets”中的数据集的代码是?( ) A: data(package="datasets") B: data("datasets") C: data(package=datasets) D: datasets
Supervised Learning is achieved using the (). A: labelled datasets B: unlabelled datasets C: normal datasets D: selected datasets
Supervised Learning is achieved using the (). A: labelled datasets B: unlabelled datasets C: normal datasets D: selected datasets
datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。查看指定包“datasets”中的数据集的代码是? A: data(package="datasets") B: data("datasets") C: data(package=datasets) D: datasets
datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。查看指定包“datasets”中的数据集的代码是? A: data(package="datasets") B: data("datasets") C: data(package=datasets) D: datasets
Keras 提供的 tf.keras.datasets.mnist.load_data() 函数从网上下载 MNIST 数据集后会自动保存在本地当前用户目录中,再次运行程序时,可以将__________作为参数传递给该函数,直接从本地加载数据集。 A: "mnist.npz" B: "user/datasets/mnist.npz" C: "home/.keras/datasets/mnist.npz" D: "~/.keras/datasets"
Keras 提供的 tf.keras.datasets.mnist.load_data() 函数从网上下载 MNIST 数据集后会自动保存在本地当前用户目录中,再次运行程序时,可以将__________作为参数传递给该函数,直接从本地加载数据集。 A: "mnist.npz" B: "user/datasets/mnist.npz" C: "home/.keras/datasets/mnist.npz" D: "~/.keras/datasets"
Word中插入数学公式的方法是()。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"
Word中插入数学公式的方法是()。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"
中国大学MOOC: datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。尝试写出R的代码,查看指定包“datasets”中的数据集。
中国大学MOOC: datasets是R中一个重要的数据集,很多有用的数据都在这个集合中。尝试写出R的代码,查看指定包“datasets”中的数据集。
定义并初始化一个用于存放我们国家的四个直辖市的数组cityName,四个直辖市为:北京,上海,天津,重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };
定义并初始化一个用于存放我们国家的四个直辖市的数组cityName,四个直辖市为:北京,上海,天津,重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };
已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素? A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])
已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素? A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])
以下哪个选项是正确的json数据格式: A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}
以下哪个选项是正确的json数据格式: A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}
把一个JSON格式数据赋给变量color:color = "色彩":[ "暖色":["红","橙","黄"], "冷色":["青","蓝"], "中性色":["紫","绿","黑","灰","白"] ]以下能够取到冷色“["青","蓝"]”的是哪一个选项?_
把一个JSON格式数据赋给变量color:color = "色彩":[ "暖色":["红","橙","黄"], "冷色":["青","蓝"], "中性色":["紫","绿","黑","灰","白"] ]以下能够取到冷色“["青","蓝"]”的是哪一个选项?_