There are numerous structures in your spine that can cause neck and/or shoulder pain. The facet joints are a frequent cause of neck pain. They are highly innervated with little nerves whose sole job is to provide sensation from them. These are the joints in your spine that allow you to twist and bend forward, backward and sideways. They take a lot of stress and loading over the course of our lives.
Types of Chinese characters. Traditionally Chinese characters are divided into six categories (å­æ¸ liÃ¹shÅ« Six Writings). This classification is often attributed to Xu Shen's second century dictionary Shuowen Jiezi, but it has been dated earlier. This page shows four of those categories.
Some of them may only have ever appeared a few times, so there is no need to be put off by this huge number. The number of characters in common use is much much smaller. According to research, if you are familiar with the 500 most common characters in Chinese then you can read 75% of modern Chinese. If you know 1000 characters, you can read 89%. 2000 characters gives you 97% coverage.