词汇测验:

1. impervious

2. refract

3. foil

4. derivative

5. confluence

6. privation

7. arbitrary

8. obstreperous

9. repulse

10. reputable

11. remedial

12. profuse

13. tenuous

14. revoke

15. libertarian

16. quaint

17. malevolent

18. abet

19. dispel

20. veracity

剩余时间： 200 秒