I meet the same problem when searching master programs in German:) Haha it's rather painful to me. here is my suggestions: 1.NEVER use Baidu's service in any important issue.Never. 2.I don't think language can be proved in a short period and information you are searching is very important, any mistake or misunderstanding can lead to great troubles.So doing everything on your own may be not the best idea. 3.Have you find any forums where Korean taking about learning or living in China in Korean language? My main source of information currently is a Chinese forum for studying in German(application,languages,tips,etc) . 4.Find a Chinese in Korean or a Korean who speaks great Chinese that you trust, pay s/he to translate the websites or polish your 'recommendation'. (There are servies on Taobao.com, provied by Chinese students in German, to help communicate with German universities.——Translate questions into German,e-mail unis and translate uni's reply into Chinese,etc. I guess there are similar service for Korean.)

Well, to write in a formal style, first you need to read a lot in that style. I think the most efficient way is to learn by heart some sample articles or sample letters. Besides that, keep reading something that is interesting and important for you. Another way is to find a teacher to help you with your writing.

well,slow down,take it easy,tackle it bit by bit.if you HEARD and READ enough,you will get to that point to gain the sense of 书面语,not before or with any shortcut method.all I'm trying to say is Even a native speaker has to take quiet a while to figure out if his little piece of writing is proper,and it happened at each and every time.have some ant spirit,or elephant shrew spirit,find out the problem,get a native friend's handouts,there are paid service out there for it,and here are communities as your backup.