比如，一种浏览器可能把select1显示成弹出菜单或者组合框，另一种浏览器则使用单选按钮，第三种则显示为滚动列表。

For example, one browser might show a select1 control as a pop-up menu or combo box while another might use radio buttons and a third a scrolling list.

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例如，能够打开一个组合框，滚动到一个选项，然后拖动选项到一个正在创建的文档中。

For example, being able to open a combo box, scroll to a choice, and then drag the choice onto a document under construction is a very powerful idiom.

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