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【单选题】
A 47-year-old woman has had worsening dyspnea for the past 5 years. A chest CT scan shows panlobular emphysema. Laboratory studies show the PiZZ genotype of αl-antitrypsin deficiency. A liver biopsy specimen examined microscopically shows abundant PAS-positive globules within periportal hepatocytes. Which of the following molecular mechanisms is most likely responsible for this finding in the hepatocytes?A.
Excessive hepatic synthesis of αl -antitrypsin
B.
Retention in the endoplasmic reticulum because of poorly folded αl -antitrypsin
C.
Decreased catabolism of αl -antitrypsin in lysosomes
D.
Inability to metabolize αl -antitrypsin
E.
Impaired dissociation of αl -antitrypsin from chaperones
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【单选题】金融市场的参与者通过买卖金融资产转移或接受风险，利用组合投资可以分散投资于单一金融资产所面临的非系统风险，这属于金融市场的（ ）功能。
A.
货币资金融通
B.
风险分散与风险管理
C.
资源配置
D.
经济调节