以下文字与答案无关
提示:有些试题内容 显示不完整,文字错误 或者 答案显示错误等问题,这是由于我们在扫描录入过程中 机器识别错误导致,人工逐条矫正总有遗漏,所以恳请 广大网友理解。
alter table test newname to test1;
B:alter table test rename to test1;
C:alter table test copy to testl
D:alter table test move to testl
}
});
}
public void show(Car c){
c.run();
c.show();
}}
abstract class Car{
public void run(){
System.out.println("car run");
}
public void show(){
System.out.println(getClass().getName());
}}
">8.请写出以下程序运行结果:package test;
public class Test {
public static void main(String] args) {
Test t = new Test();
t.show(new Car(){
public void run(){
System.out.println("test run");
}
});
}
public void show(Car c){
c.run();
c.show();
}}
abstract class Car{
public void run(){
System.out.println("car run");
}
public void show(){
System.out.println(getClass().getName());
}}
from sklearn.model_selection import train_test_split
X_train,X_test,y_train,y_test
=train_test_split(iris.data,iris.target,
test_size=0.4,random_state=0)
选项: A:加载数据
B:分割数据
C:分组数据
D:删除部分数据
hdfs dfs -put /hdfstest/test.txt
B:hdfs dfs -get /hdfstest/test.txt
C:hdfs dfs -download /hdfstest/test.txt
D:hdfs dfs -move /hdfstest/test.txt
IF THE BITE TEST FAILS,THEN YOU CORRECTS THE FAULT
B:IF THE BITE TEST PASSES,THEN YOU CORRECTED THE FAULT
C:IF THE BITE TEST PASSES,THEN YOU ARE CORRECTED THE FAULT
文件的默认打开方式是”r”
B:文件test.txt必须存在
C:只能从文件test.txt中读数据,而不能向该文件中写数据
D:只能向文件test.txt中写数据,而不能从该文件中读数据