Is it self evident to them?

The university migration to the countryside began around 2003 in both Beijing and Shanghai. It was met with dismay by students who had dreamed of the chance for city living and, possibly, an urban hukou.

What ever the official motivation, most faculty and students believed intercity land values precipitated the move to rural student ghettos.

In Beijing, CUFE built an office building on the Haidian canpus and leased commercial space while undergrads were shuffled out to Shahe near Changping (think Ming Tombs).

The Shanghai Accounting university was relocated two hours, by train, to the West.

As an aside, lookup "Battle of Langfang, 1900" for a perspectives on the Boxer Rebellion, missionaries, imperial armies (both pro and anti foreigner) and the Eight Nation Alliance for examples conflicting accounts of history.

www.gokunming.com/en/forums/thread/13265/eye_exam_for_a_child

There is no problem exiting China, either via Shenzhen or Zhuhai, for a day visit to HK or Macau.

So to answer you, yes. You can exit China and re-enter the same day on a normal residence permit.

Not sure of the rules about periodic exits mandated by some visa types. This is an odd question for a holder of a 10 year visa as the terms and requirements should be clear.

I would go to the bus company office on 西安马路 (Xi'an Rd.) in 小西门 (xiao xi men). From the intersection of 人民西路 and 东方路,go west on the south side of Renminxilu, about 250 m from the flyover Xi'an Rd is a right turn. About 50 m on the right is a bus company office.

You need to wander around and ask as there is more than one entrance and not all stations are manned. You need to buy the card the fill it.

The north bus station has a street level walk-up window as well.

I always put 50-100 yuan in the card as refilling it was a pain.