问题
单项选择题
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.
An increase in the activity cycle shows a decrease in the body’s delta rhythm.
A. Right
B. Wrong
C. Not Mentioned
答案
参考答案：B