定语从句什么时候用 THAT 什么时候用 WHICH？

我只能粗略的说一下：
关系代词that与which的区别：
关系代词that与which指物时，往往可以互换，但在下列句中多用that：
1. All that glitters is not gold. 闪光的东西不都是金子。（不定代词包括复合词something 等多后接that）
2. It was the largest map that I ever saw. 那是我所见过的最大的地图。（前有形容词最高级等的先行词之后多用that）
3. It was education that brought about such a big change in his life. 是教育给他的生活带来了如此大的变化。（强调结构用that）
4. Which was the hotel that was recommended to you? 哪一个是推荐给你的旅馆？ (这里用that 显然是为了避免重复which)
5. The room that faces the south is mine. 朝南的那个房间是我的。（that在此表固有的特点）

在下列句中多用which:
6. Beijing, which was China's capital for more than 800 years, is rich in cultural and historic relics. (非限制性定语从句一般皆用which)
7. Larry told her the story of the young airman which I narrated at the beginning of this book. 拉里把我在书本开头叙述过的那个关于一个青年飞行员的故事讲给她听。（离先行词较远时常用which，如在此处用that, 则会有指前面的airman的可能）
8. A shop should keep a stock of those goods which sell best. 商店应存有最畅销的货物。（“those + 复形名词”之后多用 which）
9. This is one of which I'm talking about. 这就是我所讲的那个。（介词之后须用which）
总结：在介词后面或者是非限制性定于从句都用which。