This way back...

叶酸有好几种吗

This is an example of the 3-column layout. In this example, one of the images in the slider has been given caption texts.

钻头好几种颜色怎么区别用途

The slider is made with a jQuery plugin called Nivo Slider, created by Gilbert Pellegrom of dev7studios and released under the MIT Licence.

天蝎座分好几种

Single-column, two columns with left or right sidebars, three columns - or a combination of any two layout options.