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题目内容
（西安石油大学大学英语（2）作业题）
(单选题) This passage is mainly about .(本题3.5分)
A、 why we dream during sleep
B、 how we dream during sleep
C、 what dreams are
D、 what benefits dreams bring to people
A、 why we dream during sleep
B、 how we dream during sleep
C、 what dreams are
D、 what benefits dreams bring to people
参考答案
