29. What does Paragraph 2 mainly talk about?A.The importance of sleep for memory strengthening.B.The various factors which influence learning outcomes.D.Reasons why teenagers should master motor skill training.30. What do we learn about “aha”moments?A.They are related to the unconscious mind.B.They cause intense focus and daydreaming.C.They depend entirely on the external factors.D. They are mainly caused by positive emotions.31. Which of the following is the most suitable title for the text?A.The Conscious Mind: Master of Human BehaviorB.Freud’'s Theory: The Dark Side of the UnconsciousC. Beyond Freud: The Unconscious as an Ideal PartnerD.Memory and Decision-Making:A Psychological StudyDAs a physicist,I love particles(粒子）—each plays a role in disclosing nature's laws.But neutrinos（中微子）,these slippery troublemakers,are uniquely troubling for darkmatter researchers.Neutrinos were born from crisis. In the 1930s, physicists faced a dilemma:radioactivebreakdowns seemed to break energy conservation. Unwillingly, they proposed an invisible,uncharged particle to balance the math. Wolfgang Pauli joked,“I have proposed a particleour planet without us even noticing.Even now, we don’t really seize neutrinos.The standard detection method is to build aabout the sea of tiny invisible particles.英语试题（一）第7页共12页
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