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【单选题】
Which statement is wrong about semantic tags? ( )
A.
Do the right thing with the right tag.
B.
Html semantic tags make the content of the page structured and clearer.
C.
Html semantic tags are inconvenient to parse for browsers and search engines.
D.
Even if there is no css style , it is displayed in a document format and is easy to read.
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参考答案：
举一反三
【多选题】(Multiple-choice question) Which statements about <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0"/> are correct? ( )
A.
The string "device-width" represents the width of the device.
B.
The user-scalable specifies whether the user is allowed to zoom.
C.
The initial-scale sets the initial scaling value of the page.
D.
All the above statements are correct.
【单选题】We want to display multiple options in the select drop-down box, whichattributeshould be set? ( )
A.
width
B.
size
C.
multiple
D.
None of the above is correct.
【单选题】We want to implement multiple choices in the select drop-down box, which attribute should be set? ( )
A.
width
B.
size
C.
checkbox
D.
multiple
【单选题】In the input field, only numbers are allowed, so what should we set the value of type to? ( )
A.
number
B.
text
C.
value
D.
password
【单选题】If the conditions are not met, the user is not allowed to click the button, so what attribute should be set? ( )
A.
placeholder
B.
action
C.
disabled
D.
readonly
【单选题】To display the prompt information in the form, it will disappear automatically when the user inputs the content, so this attribute is ( ).
A.
spellcheck
B.
autocomplete
C.
pattern
D.
placeholder
【单选题】What is the attribute that makes the input element get the focus automatically when the page is loaded? ( )
A.
autocomplete
B.
autofocus
C.
placeholder
D.
required
【单选题】In <textarea>, what attribute is used to set the maximum number of characters? ( )
A.
width
B.
max
C.
size
D.
maxlength
【多选题】(Multiple-choice question) Which of the following are the new pseudo classes of css3? ( )
A.
:nth-of-type
B.
:not
C.
:empty
D.
:root
【单选题】About the form attributes, which of the following statements is incorrect? ( )
A.
The list specifies an available options list for the input field, when the user enters information in the input field, the drop-down list prompt will be automatically displayed for the user to choose from.
B.
The pattern is used to verify the contents of the input.
C.
The step sets the legal numeric interval of the input field.
D.
The size sets the maximum number of characters that can be entered into the input field.
相关题目：
【多选题】(Multiple-choice question) Which statements about <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0"/> are correct? ( )
A.
The string "device-width" represents the width of the device.
B.
The user-scalable specifies whether the user is allowed to zoom.
C.
The initial-scale sets the initial scaling value of the page.
D.
All the above statements are correct.
【单选题】We want to display multiple options in the select drop-down box, whichattributeshould be set? ( )
A.
width
B.
size
C.
multiple
D.
None of the above is correct.
【单选题】We want to implement multiple choices in the select drop-down box, which attribute should be set? ( )
A.
width
B.
size
C.
checkbox
D.
multiple
【单选题】In the input field, only numbers are allowed, so what should we set the value of type to? ( )
A.
number
B.
text
C.
value
D.
password
【单选题】If the conditions are not met, the user is not allowed to click the button, so what attribute should be set? ( )
A.
placeholder
B.
action
C.
disabled
D.
readonly
【单选题】To display the prompt information in the form, it will disappear automatically when the user inputs the content, so this attribute is ( ).
A.
spellcheck
B.
autocomplete
C.
pattern
D.
placeholder
【单选题】What is the attribute that makes the input element get the focus automatically when the page is loaded? ( )
A.
autocomplete
B.
autofocus
C.
placeholder
D.
required
【单选题】In <textarea>, what attribute is used to set the maximum number of characters? ( )
A.
width
B.
max
C.
size
D.
maxlength
【多选题】(Multiple-choice question) Which of the following are the new pseudo classes of css3? ( )
A.
:nth-of-type
B.
:not
C.
:empty
D.
:root
【单选题】About the form attributes, which of the following statements is incorrect? ( )
A.
The list specifies an available options list for the input field, when the user enters information in the input field, the drop-down list prompt will be automatically displayed for the user to choose from.
B.
The pattern is used to verify the contents of the input.
C.
The step sets the legal numeric interval of the input field.
D.
The size sets the maximum number of characters that can be entered into the input field.
参考解析：
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