上升的物价水平和下降的实际国民收入是由以下哪项引起的？（   ）
A、总需求曲线在给定的短期总供给曲线向左上移动
B、通货紧缩的自动调节机制
C、长期总供给曲线右移
D、短期总供给曲线沿着不变的总需求曲线左移

单项选择题甲乙两家企业均为某商业银行的客户,甲的信用评级低于乙,在其他条件相同的情况下,商业银行为甲设定的贷款利率高于为乙设定的贷款利率,这种风险管理的策略属于0。

多项选择题How would the Chinese teacher interpret his friend's invitation according to this scenario? A.The Chinese teacher interprets her invitation expression as a real invitation so he takes it seriously. B.The Chinese teacher interprets what this invitation statement means literally. C.The Chinese teacher is not aware of the implication behind the invitation expression. D.The Chinese teacher does not interpret her invitation expression as a real invitation.