比较结构
1. no/not ... other than
2. the 比较级……，the 比较级……
3. rather ... than ...
4. more than / no more than
5. less than / no less than
6. more A than B / no more A than B
7. less A than B / no less A than B
8. nothing else than
10. as much as
11. not as ... as ...
12. not so much ... as ...
