词汇测验:

1. instigate

2. arbitrary

3. culmination

4. fickle

5. iniquity

6. pervasive

7. rectitude

8. verbose

9. feral

10. impeccable

11. infusion

12. inviolable

13. abstruse

14. taciturn

15. curtail

16. diligent

17. circumvent

18. connive

19. conundrum

20. salutation

剩余时间： 200 秒