問題詳情

Why do we dream? Nobody knows, but everybody ______21______ . We dream during REM (rapid eye movement) sleep. In eight hours of sleep, people usually have four REM periods. But we ______22______ very little. We usually remember only 20 or 30 seconds of REM sleep.There are many ideas about dreams. Some psychologists believe we dream because we need a safe way to do things we can't do where we're ______23______ . Some think we dream in order to work out our problems. ______24______ believe dreams don't have any special meaning. They are simply thoughts that come to us when we ______25______ . Whatever you believe, dreams prove one thing—some people have wonderful imaginations.
21
(A)understands
(B)dreams
(C)sleeps
(D)does

參考答案

答案：B
難度：適中0.631443
統計：A(37),B(735),C(50),D(342),E(0)

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