2017年6月英语六级考试选词填空答案卷三
选词填空一半大脑警觉
文章开头:Half of your brain stays alert and prepared for danger when you sleep in a new place
26. K) referred
27. O) volunteers
28. M) specifically
29. H) novel
30. I) potential
31. E) identified
32. L) species
33. G) marine
34. B) consciously
35. J) predators