HTML至少需要多少个标签？
总共要4对，8个。
How many HTML tags are should be used for the most simple of web pages?
8 total. 4 pairs of tags.
Simplest page ever!
Doesn’t get simpler than this.
<HTML><HEAD><TITLE>Simplest page ever!</TITLE></HEAD><BODY>Doesn’t get simpler than this.</BODY></HTML>