【单选题】以下用法正确的是()。 A: var p=document.querySelector('p'); p.text('abc'); B: var h5=$('h5'); h5.innerText='h5'; C: $(document.querySelector('h2')).textContent('h2'); D: $(document.querySelector('h2')).text('h2');
【单选题】以下用法正确的是()。 A: var p=document.querySelector('p'); p.text('abc'); B: var h5=$('h5'); h5.innerText='h5'; C: $(document.querySelector('h2')).textContent('h2'); D: $(document.querySelector('h2')).text('h2');
求方程$2yy''=(y')^2+y^2$的通解时,可令( ) A: $y'=p$,则$y''=p'$ B: $y'=p$,则$y''=p\dfrac{\text{d}p}{\text{d}y}$ C: $y'=p$,则$y''=p\dfrac{\text{d}p}{\text{d}x}$ D: $y'=p$,则$y''=p'\dfrac{\text{d}p}{\text{d}y}$
求方程$2yy''=(y')^2+y^2$的通解时,可令( ) A: $y'=p$,则$y''=p'$ B: $y'=p$,则$y''=p\dfrac{\text{d}p}{\text{d}y}$ C: $y'=p$,则$y''=p\dfrac{\text{d}p}{\text{d}x}$ D: $y'=p$,则$y''=p'\dfrac{\text{d}p}{\text{d}y}$
下列代码的输出结果是__________。<script type="text/javascript">function msg(){ var p=document.createElement("p"); var Text=document.createTextNode("Hello!"); p.appendChild(Text); document.body.appendChild(p);}msg();</script>
下列代码的输出结果是__________。<script type="text/javascript">function msg(){ var p=document.createElement("p"); var Text=document.createTextNode("Hello!"); p.appendChild(Text); document.body.appendChild(p);}msg();</script>
What do you think is the main idea of the text? </p></p>
What do you think is the main idea of the text? </p></p>
有内部样式表定义如下: <style type="text/css"> p{color:red;font-size:15px;} </style> 同时,有 HTML代码如下所示: <p style="background-color:gray;color:blue;">p text</p> 段落中的文本”p text“的最终显示效果是
有内部样式表定义如下: <style type="text/css"> p{color:red;font-size:15px;} </style> 同时,有 HTML代码如下所示: <p style="background-color:gray;color:blue;">p text</p> 段落中的文本”p text“的最终显示效果是
在vi中下列命令不能用来在光标前插入文本的是() A: p[text] B: a[text] C: i[text] D: o[text]
在vi中下列命令不能用来在光标前插入文本的是() A: p[text] B: a[text] C: i[text] D: o[text]
When annotating a text, you can use all of the following EXCEPT ______ . </p> </p>
When annotating a text, you can use all of the following EXCEPT ______ . </p> </p>
In the text “What how Do You Think the Internet Will Be Like in 2050”: </p> </p>
In the text “What how Do You Think the Internet Will Be Like in 2050”: </p> </p>
查看如下 html 代码: <div style="float:left;">div text</div> <p style="clear:left;">p text</p> 此代码在页面上的显示效果为()
查看如下 html 代码: <div style="float:left;">div text</div> <p style="clear:left;">p text</p> 此代码在页面上的显示效果为()
Signaling nouns help create and maintain continuity in text, and thus such nouns are also refers to as ____.</p></p>
Signaling nouns help create and maintain continuity in text, and thus such nouns are also refers to as ____.</p></p>