I observed that the CJK package contained in CTAN is 4.5.2. It cannot get
the bookmarks in the right characters. I heard that CJK 4.7.0 has already
solved this problem. I experimented to download CJK 4.7.0, and extract
everything under texinput to the local directory, but it did not work
either. Who can provide me with a proved step-by-step guide on how to setup
4.7.0 version of CJK package? I don't want to spoil my MiKTeX again.
And how can I install fonts other than gbsn? It is very ugly when switched
to bold. I tried song and kai, but neither of them worked.