1. which or what

which 指代整个句子 ，而 what 同之前用法一致

1.which，非限，整个句子作为先行词

2.what，缺少宾语，the things that

3.what

4.which, 修饰前面这个句子

5.what 6.which 7.which，非限，代指前面整个句子

8.what 9.which 10.which

11.which 12.what 13.which 14.what

15.which 16.what 17.which 18.which

2. which 的特殊用法

1.for which case

2.at which time 在这个时间下

3.in which case 在这种情况下

4. for which disturbing experience 由于一种不好的经历