Questions 14-23 ·Look at the ten statemen
题型：单项选择题
问题：
Questions 14-23
·Look at the ten statements for this part.
·You will hear a passage about "A Research on Sleep ". You will listen to it twice.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Mark your answers on the Answer Sheet.
REM sleep is characterized by a lack of body movement.
A. Right
B. Wrong
C. Not Mentioned
