,of which的定从 改成 that 的The most valuable find of all was the ship's log book ,parts of which it was still possible to read.改成 The most valuable find of all was the ship's log book that .这样的

,of which的定从 改成 that 的
The most valuable find of all was the ship's log book ,parts of which it was still possible to read.
改成 The most valuable find of all was the ship's log book that .这样的