單項選擇題

You create a Web page that contains the following div.

You have a JavaScript array named imageurls that contains a list of image URLs. You need to write a JavaScript function that will insert images from the URLs into target. Which code segment should you use？（）

A.$（imageurls）.each（function（i，url）{ $（""， url）.append（"#target"）； }）；
B.$（imageurls）.each（function（i，url）{ $（"#target"） += $（""）.attr（"src"， url）； }）；
C.$.each（imageurls， function（i，url）{ $（""）.attr（"src"， url）.appendTo（"#target"）； }）；
D.$.each（imageurls， function（i，url）{$（"#target"）.append（""）.src = url； }）；

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單項選擇題

A Web page includes the HTML shown in the following code segment.
You need to write a JavaScript function that will dynamically format in boldface all of the hyperlinks in the ref span.Which code segment should you use？（）

A.$（"#ref"）.filter（"a[href]"）.bold（）；
B.$（"ref"）.filter（"a"）.css（"bold"）；
C.$（"a"）.css（{fontWeight："bold"}）；
D.$（"#ref a[href]"）.css（{fontWeight："bold"}）；

單項選擇題

You create a Web page that contains the following image element.
You need to write a JavaScript function that will dynamically change which image is displayed. Which code segment should you use?（）

A.function changeImage（） {myImage.src = "image2.png"； }
B.function changeImage（） { document.getElementById（"myImage"）.src = "image2.png"； }
C.function changeImage（） { getElementById（"myImage"）.src = "image2.png"； }
D.function changeImage（） { window.getElementById（"myImage"）.src = "image2.png"； }

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You create a Web page that contains the following div.

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A Web page includes the HTML shown in the following code segment. You need to write a JavaScript function that will dynamically format in boldface all of the hyperlinks in the ref span.Which code segment should you use？（）

You create a Web page that contains the following image element. You need to write a JavaScript function that will dynamically change which image is displayed. Which code segment should you use?（）

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A Web page includes the HTML shown in the following code segment.
You need to write a JavaScript function that will dynamically format in boldface all of the hyperlinks in the ref span.Which code segment should you use？（）

You create a Web page that contains the following image element.
You need to write a JavaScript function that will dynamically change which image is displayed. Which code segment should you use?（）