题目内容：
根据材料，回答问题。B
Everybody dreams．Some people think dreams can tell us about the future．Other people think dreams can tell us about ourselves．It’s like our __ 11__is talking to us．
Why all dreams__12__strange and hard to understand?Some people think our brain uses__13__to talk to us．When we fly，swim，or fall down in our dreams，it has a __14__ meaning．Lots of doctors help people__15__their dreams．They find that dreams tell us about our__16__and fears．These days，many scientists __17 __that dllams are very important．During the day，we have many__18__，and our brain receives a lot of information．When we dream，our brain __19__ infor． marion that is not important，and puts the most important information into our __20 __．As we learn more about the brain，we may find answers to our questions about dreams．
11． A．body
B．spirit
C．brain
D．heart
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