When the browser opens a secured connection, https can be seen in the URL instead of just http. To know if a website is secure or not, look for the locked yellow colored padlock symbol on the lower right corner of the browser window. Some web sites use a secure connection between the web site and your browser.
93%. the literacy rate of China is 82%. but it wasn't always this high! prior to 1999 only 20% of Chinese were literate!
There are 55 minorities in China (the Han majority not included), of which many have their own language and therefore their own schools. At these schools Chinese is introduced in 3rd grade of primary school, and English is introduced in the 7th grade (i.e. the first grade of Middle school).