词汇测验:

1. benign

2. incessant

3. plethora

4. interject

5. extol

6. imperious

7. extraneous

8. surmise

9. augment

10. vituperate

11. pertinacious

12. demarcation

13. exalt

14. tantamount

15. oblivious

16. potable

17. heterogeneous

18. surrogate

19. abject

20. integral

剩余时间： 200 秒