词汇测验:

1. utilitarian

2. preponderance

3. aversion

4. hiatus

5. linchpin

6. debase

7. encore

8. chronicle

9. enigmatic

10. catalog

11. luminous

12. contravene

13. concise

14. abnegation

15. inundate

16. idiosyncratic

17. ecstatic

18. deferential

19. mutable

20. collateral

剩余时间： 200 秒