REM sleep is characterized by a lack of body movement.（）
A: Right
B: Wrong
C: Not Mentioned
A: Right
B: Wrong
C: Not Mentioned
举一反三
- Actions will soon be taken in America to better help people with Sleep problems.（） A: Right B: Wrong C: Not mentioned
- The study shows that the longer you sleep each night，the longer you’11 live．（） A: Right B: Wrong C: Not mentioned
- The study shows that the longer you sleep each night, the' longer you'll live. A: Right B: Wrong C: Not mentioned
- The experiment proved to be satisfactory．（） A: Right B: Wrong C: Not mentioned
- 38.It is hard to be a volunteer in a hospital. A: Right B: Wrong C: Not Mentioned