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【单选题】下列哪条是定义样式规则的正确形式。 （）
A．body {color = black}
B．body:color=black
C．body {color: black}
D．{body;color:black}
参考答案和解析
body {color: black}
更多 “【单选题】下列哪条是定义样式规则的正确形式。 （）A．body {color = black}B．body:color=blackC．body {color: black}D．{body;color:black}” 相关考题
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I wish we had a color TV. I’m _ pictures in black and white.
A.tired ofB.interested inC.fond ofD.fed up
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以下关于样式表项的定义中,错误的是:()。
A.H1, H2 {color:red}B.H1 B{color:red}C.H1#color_red{color:red}DA:Active {color:red}
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下列()是定义样式表的正确格式。A、{body:color=black(body}B、body:color=blackC、body{color:black}D、{body;color:black}
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YoucreateaWebpagethatcontainsthefollowingcode.Youneedtoensurethatwhentheuserclicksaniteminthelist,thetextcoloroftheWelcome!messagewillchange.Whichdeclarationshouldyouuse?()
A.ulid=color lionclick=changeColor(this.innerText);Black/lilionclick=changeColor(this.innerText);Red/li/ulB.ulid=color lionclick=changeColor(this.style.color);Black/lilionclick=changeColor(this.style.color);Red/li/ulC.ulid=colorliaonfocus=changeColor(this.innerText);Red/a/liliaonfocus=changeColor(this.innerText);Black/a/li/ulD.ulid=color liaonfocus=changeColor(this.innerText);Red/a/liliaonfocus=changeColor(this.innerText);Black/a/li/ul
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下列哪一项是CSS正确的语法构成()。A.body:color=blackB.{body;color:black}C.body{color:black;}D.{body:color=black(body}
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The color display will use both chrominance and luminance information. A black and white display uses(74).A．neither of the two componentsB．the chrominance componentC．the luminance componentD．both of the twocomponents
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下列符合CSS语法的正确语句是( )。A.body：color=blackB.{body；color：black}C.body{color：black；}D.{body：color=black}
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本题的功能是用按钮来控制文本框中文本的颜色。窗口中有两个带有文字标题的面板“Sample text”和“Text color control”，窗口的底部还有一个复选按钮“Disable changes”。在“Sample text”面板中有一个带有字符串的文本框，而在“Text color control”面板中有三个按钮：“Black”、“Red”和“Green”，并且每个按钮上都有一个对应颜色的圆。单击任意按钮，文本框中的文本变成对应的颜色，如果选中“Disable changes”复选项，则三个颜色按钮变为不可用，如果取消选中复选项，则三个按钮变为可用。import javax．swing．*；import java．awt．*；import java．awt．event．*；public class java3 extends JFrame{private JPanel upper，middle，lower；private JTextField text；private JButton black，red，green；private JCheckBox disable；public java3（String titleText）{super（titleText）；addWindowListener（new WindowAdapter（）{public voidwindowClosing（WindowEvent e）{System．exit（0）；}}）；upper=new JPanel（）；upper．setBorder（BorderFactory．ereateTitledBor-der（"Sample text"））；upper．setlayout（new BorderLayout（））；text=new JTextField（"Change the color of thistext"）：upper．add（text，BorderLayout．CENTER）；middle=new JPanel（）；middle．setBorder（BorderFactory．createTitledBor-der（"Text color control"））；middle．setLayout（new FlowLayout（FlowLayout．CENTER））：black=new JButton（"Black"，new ColorIcon（Color．black））；black．addActionListener（ new ButtonListener（Color．black））；middle．add（black）；red=new JButton（"Red"，new ColorIcon（Col-or．red））；red．addActionListener（new ButtonListener（Col-or．red））；middle．add（red）；green=new JButton（"Green"，new ColorIcon（Color．green））；green．addActionListener（new ButtonListener（Color．green））；middle．add（green）；lower=new JPanel（）；lower．setLayout（new FlowLayout（FlowLayout．RIGHT））；disable=new JCheckBox（"Disable changes"）：disable．addItemListener（new ItemListener（）（public void itemStateChanged（ItemEvent e）{boolean enabled=（e．getStateChange（）= =ItemEvent．DESELECTED）：black．setEnabled（enabled）；red．setEnabled（enabled）；green．setEnabled（enabled）；}}）；lower．add（disable）；Container cp=getContentPane（）；cp．add（upper，BorderLayout．NORTH）；cp．add（middle，BorderLayout．CENTER）；cp．add（10wer，BorderLayout．SoUTH）；pack（）；setVisible（true）；}class ButtonListener extends ActionListener{private Color c；public ButtonListener（Color c）{this．c=c；}public void actionPerformed（ActionEvent e）{text．setForeground（c）；}}class ColorIcon implements Icon{private Color c；private static final int DIAMETER=10；public ColorIcon（Color c）{c=c；}public void paintlcon（Component cp，Graphics g，int x，int y）{g．setColor（c）；g．fillOval（X，y，DIAMETER，DIAMETER）；g．setColor（Color．black）；g．drawOval（x，y，DIAMETER，DIAMETER）；}public int getlconHeight（）{return DIAMETER；}public int getlconWidth（）{return DIAMETER；}}public static void main（String[]args）{new java3（"advance"）；}}
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10．—What color______ Jim's jackets? ．—________black．A． is ;It'sB． is; They'reC． are ;It'sD． are; They're
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The traffic lights were red when the driver reached them．To the surprise of his passenger,the ear did not slow down．Unexpectedly the passenger was thrown forward in the vehicle as the driver put on his brakes at the last moment．The car stopped just in time.
"Sorry,I didn't notice the light．I thought it was green until I saw that it was the top light which was shining."
This strange story is quite true．About ten men in every hundred are color blind in some way;women are luckier--only about one in two hundred suffers from color blindness.
In some cases,a man may not be able to see deep red．He may think that red,orange and yellow are all the same as green.
People often like one color more than others．Blue is the color of the sky and sea．Green makes us think of fields and trees．Red is the color of blood and makes some people think of danger．Black is the color of night．In the dark we cannot see what is around us so we are sometimes afraid of the unknown and do not like black as a color.
Among the traffic lights,red light is placed__.A.at the bottom
B.in the middle
C.at the top
D.below the green light
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The traffic lights were red when the driver reached them．To the surprise of his passenger,the ear did not slow down．Unexpectedly the passenger was thrown forward in the vehicle as the driver put on his brakes at the last moment．The car stopped just in time.
"Sorry,I didn't notice the light．I thought it was green until I saw that it was the top light which was shining."
This strange story is quite true．About ten men in every hundred are color blind in some way;women are luckier--only about one in two hundred suffers from color blindness.
In some cases,a man may not be able to see deep red．He may think that red,orange and yellow are all the same as green.
People often like one color more than others．Blue is the color of the sky and sea．Green makes us think of fields and trees．Red is the color of blood and makes some people think of danger．Black is the color of night．In the dark we cannot see what is around us so we are sometimes afraid of the unknown and do not like black as a color.
According to the passage,which of the following statements is true?A.Black stands for unhappines
B.Black makes people think of nigh
C.Black makes people think of sorro
D.Black is the color of the mournin
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下列选项CSS语法规则正确的是（）。A、body：color=blackB、{body；color：black}C、body{color：black}D、{body：color=black（body）}
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Premiere Pro内部建立的哪个元素可以得到下面的AllScope视图：（）A、Bar and ToneB、Black VideoC、Color MatteD、Universal Counting Leader
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PremierePro内部建立的哪个元素可以得到下面的AllScope视图（）A、Barand ToneB、Black VideoC、Color MatteD、Universal Counting Leader
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Using the CMYK color model， the color purple is produced by combining cyan and which other color？（）A、GreenB、MagentaC、YellowD、Black
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Which of the following is a reason black toner is used in color printers？（）A、It decreases the print speed in color laser printers.B、It prevents moir patterns when printing color photographs.C、It reduces the cost per page when printing gray scale documents.D、It makes the color toner resistant to smudging when wet.
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设置一个盒子的背景颜色为黑色，以下属性正确的是（）。A、background-color：#fffB、background-color：#000C、color：#000D、color：black
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下列哪个选项的CSS语法是正确的（）A、body：color=blackB、{body：color=black（body}C、body{color：black}D、{body；color：black}
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下列哪一项是css正确的语法构成（）。A、body：color=blackB、{body；color：black}C、body{color：black；}D、{body：color=black（body}
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单选题下列选项CSS语法规则正确的是（）。A
body：color=blackB
{body；color：black}C
body{color：black}D
{body：color=black（body）}
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单选题The color _____ from yellow through green to black.A
consistsB
constitutesC
composesD
ranges
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单选题The Color Purple, written by _____, centers on the life of Celie, a black woman who has been raped by the man she believed to be her father.A
Toni MorrisonB
Thomas PynchonC
Flannery O’ConnorD
Alice Walker
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单选题Which of the following is a reason black toner is used in color printers？（）A
It decreases the print speed in color laser printers.B
It prevents moir patterns when printing color photographs.C
It reduces the cost per page when printing gray scale documents.D
It makes the color toner resistant to smudging when wet.
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单选题在HTML中，下面（）是已被访问过呈红色文字的样式。A
a：link{color：red；}B
a：hover{color：red；}C
a：visited{color：red；}D
a：active{color：red；}
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单选题Mordecai finds it hard to understand that some movies were filmed in black and white but are now shown on television in colorA
white but are now shown on television in colorB
white, but they are now shown as color on televisionC
white, and have since been shown as color on televisionD
white, since showing in color on televisionE
white, but they have since shown color on television
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( 难度：中等)以下关于CSS的语法中不正确的有（）A.body:color=blackB.{body;color:black}C.body {color: black;}D.{body:color=black(body)}
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