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【单选题】
在游泳中才能学会游泳,同样,在思考中才能学会思考。斗争锻炼才智,脑子越用越灵。思想家在《潜书》中说:“心,灵物也; 。” 第一段文字横线处依次填入的句子,顺序最恰当的一项是( ) 1小用之则 2变用之则至神 3大用之则大成 4不用则常存A.
④①③②
B.
①②③④
C.
①③②④
D.
④②③①
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【简答题】大脑动脉环（Willis环）
【简答题】热着火与链式着火的区别?
【简答题】Once upon a time there lived a woman who had a bad temper(脾气). She 1 at everyone around her. For most of her life she believed the anger inside her was 2 else’s fault(过错). She went to see a wise monk(...
【单选题】Because her mother was ill, she had no _____ to go to the New Year Party．
A.
taste
B.
emotion
C.
sense
D.
mood
【单选题】What happened to Jenkins on her 56th birthday?
A.
She was stabbed with a knife.
B.
She lost more than 100 pounds.
C.
She had surgery.
D.
She began to float.
【多选题】热着火与链式着火的区别主要有()
A.
热着火需要良好的保温条件，而链式着火不需要严格的保温条件
B.
热着火过程中系统的温度整体上升，链式着火过程局限在活化中心的生成速率大于销毁速率的区域。
C.
热着火的强度较大，链式着火的着火强度不高。
D.
热着火过程中化学反应速度加速，而链式着火过程化学反应速度不变。
【简答题】试述大脑动脉环（Willis环）的组成。
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