【单选题】Create a new file "new.txt" that is a concatenation of "file1.txt" and "file2.txt". A. cat file1.txt file2.txt > new.txt B. cat file1.txt file2.txt = new.txt C. make new.txt=file1.txt+file2.txt D. cp file1.txt

公告：维护QQ群：833371870，欢迎加入！
公告：维护QQ群：833371870，欢迎加入！
公告：维护QQ群：833371870，欢迎加入！

2021-04-14 问题

【单选题】Create a new file "new.txt" that is a concatenation of "file1.txt" and "file2.txt". A. cat file1.txt file2.txt > new.txt B. cat file1.txt file2.txt = new.txt C. make new.txt=file1.txt+file2.txt D. cp file1.txt | head file2.txt > new.txt

【单选题】Create a new file "new.txt" that is a concatenation of "file1.txt" and "file2.txt". A. cat file1.txt file2.txt > new.txt B. cat file1.txt file2.txt = new.txt C. make new.txt=file1.txt+file2.txt D. cp file1.txt | head file2.txt > new.txt

2022-05-28 问题

下列方法中，能正确创建 JavaScript 对象的是（）。 A: var txt = new Object[name:"George",price:25] B: var txt = new Object(name:"George",price:25) C: var txt = new Object{name:"George",price:25} D: var txt = new Object({name:"George",price:25})

下列方法中，能正确创建 JavaScript 对象的是（）。 A: var txt = new Object[name:"George",price:25] B: var txt = new Object(name:"George",price:25) C: var txt = new Object{name:"George",price:25} D: var txt = new Object({name:"George",price:25})

2022-05-28 问题

下列方法中，能正确创建 JavaScript 对象的是（）。 A: var txt = new Object[name:"George",price:25] B: var txt = new Object(name:"George",price:25) C: var txt = new Object{name:"George",price:25} D: var txt = new Object({name:"George",price:25})

2022-06-19 问题

实现创建一个 JavaScript 数组的语法是 _________ A: var txt = newArray("tim","kim","jim") B: var txt = newArray(1:"tim",2:"kim",3:"jim") C: var txt = new Array="tim","kim","jim" D: var txt = newArray:1=("tim")2=("kim")3=("jim")

实现创建一个 JavaScript 数组的语法是 _________ A: var txt = newArray("tim","kim","jim") B: var txt = newArray(1:"tim",2:"kim",3:"jim") C: var txt = new Array="tim","kim","jim" D: var txt = newArray:1=("tim")2=("kim")3=("jim")

2022-06-05 问题

#读、写文件内容fp=open('2.c', mode=)txt=fp.read(10)fp.seek( 0 ).write( 'new text' )fp.close()

#读、写文件内容fp=open('2.c', mode=______)txt=fp.read(10)fp.seek( 0 )______.write( 'new text' )fp.close()

2021-04-14 问题

切换至终端2，在终端2下进行如下工作：1.以账户test登录。2.查看用户的有效用户组。创建新文件new.txt，查看文件new.txt所属用户组.3.切换用户的有效用户组为project1。创建新文件new1.txt，查看new1.txt所属用户组

切换至终端2，在终端2下进行如下工作：1.以账户test登录。2.查看用户的有效用户组。创建新文件new.txt，查看文件new.txt所属用户组.3.切换用户的有效用户组为project1。创建新文件new1.txt，查看new1.txt所属用户组

2021-04-14 问题

【单选题】txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。 A. 1 B. txt ,图片，Word。 C. txt ,图片，Word。

【单选题】txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。 A. 1 B. txt ,图片，Word。 C. txt ,图片，Word。

2022-05-28 问题