四六级考试

【单选题】 During REM, ______.
A．your eyes move quickly
B．you dream
C．you are restless
D．both A and B

网考网参考答案：D
网考网解析：
见第三段：This stage of sleep is called REM，which stands for rapid eye movement．这一情况只在做梦时发生。 查看试题解析出处>>