单项选择题
下述对HTML文档的说法哪个正确的？（）
A．HTML文档结构一般分为文件头、文件中、文件尾
B．HTML文档实际上是一个二进制文件
C．HTML文档结构中文件头还包括文档标题标签....<title><br />D．HTML文档结构中表示文件头的标签是<html>标签<br /> </div>
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<a title="下面哪个不属于网上商店商品包装的原则（ ）" href="https://www.zxtiku.com/mobile/view/sjtk/BAC45A4806C120E9.html">
<p class="content"><span>单项选择题</span>下面哪个不属于网上商店商品包装的原则（ ）</p>
A．适合运输<br />B．适度包装的原则<br />C．重心合一的原则 <br />D．分体包装原则<br />
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<a title="行内比较常见的表述：“电子商务就是在Internet开放的网络环境下，基于浏览器 服务器应用方式，实现消费都是的网上购物、商户之间的网上交易、在线电子支付又及有关方的网络服务的一种新型的（ ）" href="https://www.zxtiku.com/mobile/view/sjtk/70E15DF8EB3E1313.html">
<p class="content"><span>单项选择题</span>行内比较常见的表述：“电子商务就是在Internet开放的网络环境下，基于浏览器 服务器应用方式，实现消费都是的网上购物、商户之间的网上交易、在线电子支付又及有关方的网络服务的一种新型的（ ）</p>
A．技术 <br />B．商务活动<br />C．手段<br />D．商业运营模式<br />
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B．HTML文档实际上是一个二进制文件
C．HTML文档结构中文件头还包括文档标题标签