One of the simplest accessibility AIDS to implement is using descriptive and useful Alt attribute for images.

——一个最简单的辅助办法就是使用描述性且有效的图片显示工具。

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The segmentation by taking production attribute utility as segmentation variable is based on causal variable rather than descriptive one.

以产品属性效用为细分变量是建立在因果关系变量而非描述性变量基础上的一种细分方法。

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