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【简答题】
设J 1 和J 2 为属于不同自由度的角动量,则它们之和J=J 1 +J 2 也是角动量. 的共同本征态|j 1 j 2 jm〉简记为|jm〉.试求〈j'm'|J 1 |jm〉≠0时量子数j和m的选择,即求Δj=(j'-j)和△m=(m'-m)的允许值.
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举一反三
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encourage employees to work overtime
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keep employees to stay longer in the office
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encourage employees to work overtime
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help employees to participate in exercise
D.
ensure employees to work energetically
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低压中温
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中压低温
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中压高温
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正确
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错误
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A.
重视过程
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重视目标的完成度
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重视成果
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