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【简答题】
氦原子单态 1s3d 1 D 2 → 1s2p 1 P 1 跃迁发出的谱线波长为 667.81nm, 在 B =1.2T 的磁场中发生正常效应 .(1) 垂直于磁场方向观测有几条谱线 ? 波长是多少 ?(2) 迎着磁场方向观测有几条谱线 ? 波长各是多少 ?
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【简答题】Where did the Ancient Olympic s originate? 2. Who participated in the Ancient Olympic s? 3. What is one of the most popular myths about the origin of the Olympic s? 4. When was the Olympic...
【简答题】1) Where did the Ancient Olympic s originate? 2) Who participated in the Ancient Olympic s? 3) What is one of the most popular myths about the origin of the Olympic s? 4) When was the Olym...
【简答题】When was the Olympic s abolished?
【单选题】心脏视诊,下列不正确的说法是:
A.
二尖瓣狭窄可见心尖搏动向右移位
B.
二尖瓣关闭不全可见心尖搏动向左下移
C.
主动脉瓣关闭不全,心尖搏动向左下移位
D.
严重二尖瓣狭窄晚期可见剑突下搏动
E.
胸骨左缘第2肋间搏动可见于二尖瓣狭窄
【单选题】关于心脏触诊，以下说法不正确的是
A.
抬举性心尖搏动是左心室肥厚重要体征
B.
心前区震颤可由于生理性因素引起
C.
心尖搏动触诊是为了进一步验证视诊所见心尖搏动的位置、范围、性质
D.
心前区震颤可见于心脏瓣膜狭窄
【简答题】Answer the following questions. 1) Where did the Ancient Olympic s originate ? 2) Who participated in the Ancient Olympic s ? 3) What is one of the most popular mythsabout the origin of the Ol...
【单选题】When was the first Olympic Winter Games officially confirmed by the International Olympic Committee?
A.
In 1924.
B.
In 1926.
C.
In 1928.
D.
In 1930.
【多选题】心脏视诊,正确的说法有
A.
二尖瓣狭窄可见心尖搏动向右移位
B.
二尖瓣关闭不全可见心尖搏动向左下移
C.
主动脉瓣关闭不全，心尖搏动向左下移位
D.
严重二尖瓣狭窄晚期可见剑突下搏动
E.
胸骨左缘第2肋间搏动可见于二尖瓣狭窄
【简答题】换路后瞬间的0+等效电路中,电容可用______(电压源/电流源)等效替换、电感可用______(电压源/电流源)等效替换。若动态元件储能初值为零,则电容相当于__________(开路/短路),电感相当于_______(开路/短路).
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