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属于前列腺组织的特异性抗原的是( )
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以平价购买到期一次还本付息的债券，其到期收益率和票面利率相等。（）
患者于体位改变时咳嗽加剧，痰量增多，可能的诊断是( )
某公司准备投资购买一种股票。现有A公司股票和B公司股票可供选择。已知A公司股票现行市价为每股28元，上年每股股利为0.50元，预计以后每年以6%的增长率增长。B公司股票现行市价为每股1.8元，上年每股股利为0.15元，股利分配政策将一贯坚持固定股利政策。某公司所要求的投资必要报酬率为8%。[要求]（1）利用股票估价模型，分别计算A、B公司股票价值。（2）代甲企业作出股票投资决策。
Some people ought to defend the workaholic.These people are unjustly accused, abused, and defamed -- often termed sick or morbid or on the border of pathology. About 30% of American business and commerce is carried on the shoulders of workaholics. The ratio might exist in art and science too.Workaholics are the achievers, the excelers. There is a national conspiracy against excellence and undue admiration of commonness and mediocrity. It is as if we are against those who make uncommon sacrifices because they enjoy doing something.Some famous psychologists say that the workaholic has an inferiority complex which leads to overcompensation. This is certainly not the case. Inferiority, or low esteem, describes laziness more accurately than it describes dedication.We do not seem to realize that very little excellence is achieved by living a well-balanced life. Edison, Ford, Einstein, Freud all had single-minded devotion to work whereby they sacrificed many things, including family and friendship. The accusation is made that workaholics bear guilt by not being good parents or spouses. But guilt can exist in the balanced life also. Think how many "normal" people and middle-ages who have never done anything well -- they are going to settle for less than what they could have become. According to this passage,().
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