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题目：

The image below is unavailable on purpose. Specify an alternate text of "w3schools.com" to be used,
so it can be read by screen readers.

提示：Use the alt attribute.

修改以下代码：

效果预览：

答案：

效果预览：

HTML 属性

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 再去学一下教程

HTML 标题

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML 段落

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML 内联样式表

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 再去学一下教程

HTML 文本格式

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 再去学一下教程

HTML 引用

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML 代码显示

Exercise 1 Exercise 2 Exercise 3 再去学一下教程

HTML 注释

Exercise 1 Exercise 2 再去学一下教程

HTML 内部样式表

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 再去学一下教程

HTML 超链接

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 再去学一下教程

HTML 图像

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 再去学一下教程

HTML 表格

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 再去学一下教程

HTML 列表

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 Exercise 6 再去学一下教程

HTML 类

Exercise 1 Exercise 2 Exercise 3 再去学一下教程

HTML 框架

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML JS入门

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML 表单入门

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程

HTML 表单组件

Exercise 1 Exercise 2 Exercise 3 再去学一下教程

HTML 输入组件

Exercise 1 Exercise 2 Exercise 3 Exercise 4 Exercise 5 再去学一下教程

HTML 输入组件属性

Exercise 1 Exercise 2 Exercise 3 Exercise 4 再去学一下教程