An object is an instance of a A: program B: class C: method D: data
An object is an instance of a A: program B: class C: method D: data
The aggregation process and the analysis of the data are the primary weaknesses of: A: CSF. B: logical application groups. C: enterprise analysis. D: process/data class matrices.
The aggregation process and the analysis of the data are the primary weaknesses of: A: CSF. B: logical application groups. C: enterprise analysis. D: process/data class matrices.
选取data第一行第一列的数据 A: data.loc[:1] B: data[1] C: data.iloc[1:2,1:2] D: data[1:2]
选取data第一行第一列的数据 A: data.loc[:1] B: data[1] C: data.iloc[1:2,1:2] D: data[1:2]
想要寻找网页中所有标签名为div,类名为title的标签,下列选项中正确的是() A: data =<br/>soup.find_all(name="title", class="div") B: data =<br/>soup.find_all(name="title", class_="div") C: data =<br/>soup.find_all(name="div", class="title") D: data =<br/>soup.find_all(name="div", class_="title")
想要寻找网页中所有标签名为div,类名为title的标签,下列选项中正确的是() A: data =<br/>soup.find_all(name="title", class="div") B: data =<br/>soup.find_all(name="title", class_="div") C: data =<br/>soup.find_all(name="div", class="title") D: data =<br/>soup.find_all(name="div", class_="title")
执行下面的代码后,输出结果为( )。class test{public $data;}Sx=new test();$x->data=100;$y=$x;$y->data=10;echo $x->data; A: 100 B: 10 C: 0 D: null
执行下面的代码后,输出结果为( )。class test{public $data;}Sx=new test();$x->data=100;$y=$x;$y->data=10;echo $x->data; A: 100 B: 10 C: 0 D: null
以下关于结构体数组和结构体元胞数组的语句中，正确创建结构体元胞数组的是 A: data.name='张三'; data.score=87;data.name='李四'; data.score=65; B: data(1).name='张三'; data(1).score=87;data(2).name='李四'; data(2).score=65 C: data[1].name='张三'; data[1].score=87;data[2].name='李四'; data[2].score=65; D: data{1}.name='张三'; data{1}.score=87;data{2}.name='李四'; data{2}.score=65;
以下关于结构体数组和结构体元胞数组的语句中，正确创建结构体元胞数组的是 A: data.name='张三'; data.score=87;data.name='李四'; data.score=65; B: data(1).name='张三'; data(1).score=87;data(2).name='李四'; data(2).score=65 C: data[1].name='张三'; data[1].score=87;data[2].name='李四'; data[2].score=65; D: data{1}.name='张三'; data{1}.score=87;data{2}.name='李四'; data{2}.score=65;
Suppose I have a data set called DATA and want to extract rows 1 to 10 and columns 5 to 7. What would be the relevant R command? A: DATA[1:10,5:7] B: DATA[5:7,1:10] C: DATA[10:1,7:5] D: DATA[7:5,10:1]
Suppose I have a data set called DATA and want to extract rows 1 to 10 and columns 5 to 7. What would be the relevant R command? A: DATA[1:10,5:7] B: DATA[5:7,1:10] C: DATA[10:1,7:5] D: DATA[7:5,10:1]
The larger the number of observations in a numerical data set, the larger the number of class intervals needed for a grouped frequency distribution.
The larger the number of observations in a numerical data set, the larger the number of class intervals needed for a grouped frequency distribution.
如果希望在关闭浏览器前删除cookie文件，使用下列（ ）函数实现。 A: setcookie('data','PHP',time()+1); B: setcookie('data','',time()+1); C: setcookie('data','PHP',time()-1); D: setcookie('data','',time()-1);
如果希望在关闭浏览器前删除cookie文件，使用下列（ ）函数实现。 A: setcookie('data','PHP',time()+1); B: setcookie('data','',time()+1); C: setcookie('data','PHP',time()-1); D: setcookie('data','',time()-1);
有如下程序 #include intchange(int*data) { *data=*data%2; return(*data)+1; } main() { intdata=12; change(&data); printf("%d,",data); data=change(&data); printf("%d,",data); } 程序运行后的输出结果是()
有如下程序 #include intchange(int*data) { *data=*data%2; return(*data)+1; } main() { intdata=12; change(&data); printf("%d,",data); data=change(&data); printf("%d,",data); } 程序运行后的输出结果是()